PLC systems and modules deliver flexible automation for industries worldwide. Our inventory includes controllers, input/output modules, and communication units from Allen-Bradley, Siemens, GE, and other leading brands.
PLC Systems & Modules
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Yokogawa SDV541-S63/PRP Digital Output Module | Yokogawa
Yokogawa SDV541-S63/PRP Digital Output Module The Yokogawa SDV541-S63/PRP, also cataloged as the SDV541 Digital Output Module, operates as a dedicated hardware component for 16-channel current source output control within the ProSafe-RS Safety Instrumented System. This module provides isolated, direct electrical execution to actuators and indicators while maintaining functional safety compliance. Hardware Specifications Parameter Specification ModelBrand Yokogawa SDV541-S63/PRP Origin Japan Number of Channels 16 channels, module isolation Output Type Current source (source type) Rated Output Voltage 24 VDC Output Voltage Drop 1 V maximum Maximum Load Current 0.2 A per output, 3.2 A total Minimum Load Current 35 mA Load Resistance Range 120 to 885 ohms Output Response Time 30 ms maximum Maximum Leak Current (OFF) 1.6–1.8 mA External Power Supply Rating 24 VDC, 3.4 A minimum, +20%/-10% Current Consumption 300 mA maximum @ 5 VDC, 150 mA maximum @ 24 VDC Withstand Voltage 2 kVAC (between output signal lines and system) Weight 0.26 kg (pressure clamp/MIL cable), 0.31 kg (with signal cable adapter) Compatible Signal Cables Yokogawa AKE331, AKB851 Operating Temperature -20 to 70 degC Corrosion Resistance ISA Standard G3 Channel-to-Channel Isolation and Process Control Attributes Each output channel is electrically isolated to prevent cross-channel interference, ensuring that voltage transients or short circuits in field devices do not propagate to other channels or the ProSafe-RS controller. The module supports standard 4-20 mA and discrete control loops, allowing deterministic actuation timing and integration into DCS networks. Cold junction compensation (CJC) is implemented for temperature-sensitive output loads. Frequently Asked Questions Q: Can the SDV541-S63/PRP module be hot-swapped while the system is operating?A: Hot-swapping is only permitted if the module is mechanically keyed and the system confirms safe isolation; do not exceed rated load current during insertion. Q: What is the maximum allowable total output load?A: Total maximum output current is 3.2 A across all channels. Exceeding this may trigger fault detection and isolate the module. Q: Are the output channels suitable for inductive loads like solenoids?A: Yes, provided the load resistance is within 120 to 885 ohms and the module’s 30 ms response time meets the application requirements. Field Installation Guidelines Ensure correct orientation using the /PRP mechanical prevention pin to avoid mis-insertion. Connect signal cables (AKE331 or AKB851) following polarity markings. Ground shielded cables at a single point to avoid ground loops. Maintain separation between high-voltage lines and digital output cables to prevent interference. Tighten pressure clamp terminals to the manufacturer’s torque specification to ensure secure electrical contact.
$200.00 $100.00
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Yokogawa Yokogawa CP99A-A Processor Card
Yokogawa CP99A-A Processor Card Configured for processor execution and interface handling in Yokogawa Centum XL and micro XL systems, the Yokogawa CP99A-A (CP99A-A Processor Card) provides direct physical and electrical execution. The Yokogawa CP99A-A processor card is installed as a dedicated control-system hardware component for procedure management, configuration functions, system monitoring, and controller-level data processing through the DCS backplane architecture. Suffix Breakdown & Model Matrix The supplied documentation identifies the module as CP99A-A, with associated references CP99A*A and S9581AS-0. No official suffix matrix or option-code decomposition is provided in the available source material; therefore, no further breakdown is included. Hardware Specifications Parameter Specification Model CP99A-A Brand Yokogawa Electric Corporation Product Type Processor Card / Interface Module Card System Compatibility Centum XL, micro XL Processor Speed 800 MHz Memory Capacity 512 MB DDR4 RAM Input Voltage 24 VDC Power Consumption 15 W Interface Ports 2 x Ethernet, 1 x USB, Card Edge Connector Output Type Digital Cooling Method Passive Convection Operating Temp 0 to 50 degC Storage Temp -20 to 70 degC Dimensions Approx. 10.0 in x 2.0 in x 15.0 in (25.4 cm x 5.1 cm x 38.1 cm) Weight Approx. 0.74 kg Origin Japan Channel Isolation and DCS Interface Characteristics Within distributed control system architectures, processor and interface cards operate in conjunction with field I/O subsystems and communication networks where signal integrity is dependent on proper isolation practices. The CP99A-A is intended for integration within Yokogawa Centum XL and micro XL platforms through its card-edge backplane connection. When deployed alongside analog instrumentation networks utilizing 4-20 mA signaling, HART-capable field devices, or process communication segments, installation practices should maintain separation between communication wiring, power distribution conductors, and grounding paths according to the host system engineering manual. Electrical isolation performance is determined by the complete control-system assembly rather than the processor card alone. Frequently Asked Questions Q: Does the CP99A-A support hot replacement while the control system remains energized?A: The provided documentation does not explicitly specify hot-swap capability. Replacement procedures should follow the applicable Centum XL or micro XL maintenance manual and site operating procedures. Q: What communication interfaces are available on the module?A: The documented interfaces include 2 Ethernet ports, 1 USB port, and a card-edge connector for integration with the host backplane. Q: What environmental limits apply during operation?A: The specified operating temperature range is 0 to 50 degC. The specified storage temperature range is -20 to 70 degC. Field Installation Guidelines Verify module part number and system compatibility before insertion into the rack or card cage. De-energize equipment when required by plant maintenance procedures and site safety regulations. Inspect card-edge contacts for contamination, oxidation, or mechanical damage prior to installation. Ensure the module is fully seated in the backplane connector and that all retention hardware is secured. Route Ethernet and auxiliary communication cables separately from high-current power conductors where practical. Maintain cabinet grounding and shielding practices specified by the DCS manufacturer. Confirm adequate enclosure ventilation to support the specified passive convection cooling method. After installation, verify processor recognition and diagnostic status through the host Centum XL or micro XL engineering environment.
$200.00 $100.00
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Yokogawa I/O Module Nest | Yokogawa AMN22
Yokogawa AMN22 I/O Module Nest Configured for module mounting, backplane signal distribution, and interface connectivity in CENTUM DCS architectures, the Yokogawa AMN22 (AMN22 I/O Module Nest) provides direct physical and electrical execution. The Yokogawa AMN22 functions as a chassis-level hardware assembly supporting installation of compatible I/O modules and communication paths between field interfaces and the associated node interface infrastructure. Suffix Breakdown & Model Matrix The supplied documentation identifies a single fixed model designation: AMN22. No official suffix matrix or ordering-code breakdown is provided in the available source material. Hardware Specifications Parameter Specification Model AMN22 Brand Yokogawa Origin Not specified in supplied documentation Product Type I/O Module Nest / Base Chassis Weight Approx. 2.0 kg (without installed I/O modules) Dimensions 125 mm x 130 mm x 248 mm Operating Temp -10 degC to 60 degC Storage Temp -25 degC to 70 degC Relative Humidity 5 % to 95 % RH, non-condensing Power Consumption Powered from 5.0 VDC backplane supply Mounting Method DIN rail or panel mounting Housing Material Flame-retardant industrial composite Protection Functions Overvoltage, overcurrent, and short-circuit protection Connectivity Integrated backplane interface for I/O module communication Channel Isolation and Process Signal Interface The AMN22 is designed for installation within Yokogawa DCS environments where analog and digital I/O modules exchange process data through the internal backplane structure. The chassis architecture incorporates channel separation and isolation-oriented layout practices intended to reduce electrical noise coupling between adjacent signal paths. When used with compatible analog modules supporting 4-20 mA process loops, the nest provides the physical platform through which field signal interfaces are routed to the control system. Frequently Asked Questions Q: Does the AMN22 operate as a standalone I/O module?A: No. The AMN22 is a hardware nest/base chassis intended to house compatible I/O modules and provide backplane connectivity within the control system. Q: What supply voltage is required by the AMN22 itself?A: The available documentation indicates a 5.0 VDC supply provided through the associated backplane or expansion rack infrastructure. Q: Does the AMN22 provide field signal termination directly?A: Field signal handling depends on the installed I/O modules. The AMN22 primarily provides mechanical mounting, power distribution, and communication interconnection functions. Field Installation Guidelines Mount the chassis on a properly grounded DIN rail or panel surface according to cabinet layout requirements. Maintain separation between low-level instrumentation wiring and high-energy power conductors. Verify backplane connector alignment before inserting I/O modules to prevent mechanical stress on connector assemblies. Connect cabinet protective earth in accordance with plant grounding standards. Route shielded signal cables separately from motor, inverter, and switching power cables where applicable. Confirm ambient temperature and humidity remain within the specified operating limits before commissioning. De-energize the associated rack or node interface assembly before installing or removing hardware unless the applicable Yokogawa maintenance procedure explicitly permits otherwise.
$200.00 $100.00
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Yokogawa Analog Input Module | Yokogawa NFAI141-H00
Yokogawa NFAI141-H00 Analog Input Module The Yokogawa NFAI141-H00, also cataloged as the NFAI141 Analog Input Module, operates as a dedicated hardware component for acquiring 4-20 mA process signals within CENTUM VP and CENTUM CS 3000 Distributed Control Systems. It is designed for direct electrical execution of analog-to-digital conversion and HART protocol communication. Hardware Specifications Parameter Specification ModelBrand Yokogawa Origin Japan Weight Approx. 0.36 kg (0.79 lbs) Dimensions Compact module for standard FIO slot OperatingTemp 0 to 55 degC (ambient operation) PowerConsumption Max 320 mA @ 5 VDC (internal node) ModuleType Analog Input Module (Current Input) Channels 16 isolated channels InputSignal 4-20 mA DC Communication HART 5 / 6 / 7 protocol pass-through AllowableInputCurrent 24 mA InputResistance Power ON: 250 Ω; Power OFF: ≥500 Ω Accuracy ±0.1% of full scale DataRefreshCycle 10 ms WithstandVoltage 1500 V AC, 1 min (input to system) HotSwappable Yes SystemCompatibility CENTUM VP / CS 3000 FIO Process Control & DCS Features The NFAI141-H00 provides channel-to-channel isolation to prevent signal interference between analog inputs. HART communication allows digital configuration and diagnostics without disrupting the 4-20 mA loop. Cold junction compensation (CJc) is internally applied for improved measurement stability under ambient temperature fluctuations. This module supports concurrent analog signal processing and digital overlay, maintaining data integrity across redundant FIO nodes. Frequently Asked Questions Q: What are the limitations for hot-swapping the NFAI141-H00?A: The module can be replaced online without shutting down the FIO system. Ensure loop wiring is stable and no surge voltage is present during removal. Q: Can the module handle signals exceeding 20 mA?A: The allowable input current is 24 mA. Signals above this may trigger overcurrent protection; do not exceed specified ratings. Q: Is firmware update required for HART protocol compatibility?A: The module supports HART 5/6/7 by default; firmware updates are generally not required for standard DCS operations. Field Installation Guidelines Install the module in the FIO slot with proper alignment to prevent connector damage. Maintain shielded wiring continuity to system ground to minimize electrical noise. Route analog signal cables separately from power lines to avoid crosstalk. Ensure ambient temperature remains within the rated range for stable operation. Verify isolation between channels when connecting multiple field devices.
$200.00 $100.00
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Yokogawa SEA4D-11 Analog Input Module | Yokogawa
Yokogawa SEA4D-11 Analog Input Module The Yokogawa SEA4D-11, also cataloged as the SEA4D-11 Analog Input Module, operates as a dedicated hardware component for converting RTD resistance signals into 4-20 mA DC outputs within Yokogawa DCS platforms. It provides precise analog-to-digital interfacing for system processors with built-in isolation and rapid response characteristics. Hardware Specifications Parameter Specification ModelBrand SEA4D-11 ModuleType Analog Input Module (Isolated Channels) NumberOfChannels 16 / 8 (dependent on sub-configuration) InputSignalRange 4-20 mA DC, 1-5 V DC InputImpedance ~250 Ω (current), ≥1 MΩ (voltage) Accuracy ±0.1% of full scale ADConversionResolution 16-bit ResponseTime ≤100 ms IsolationVoltage 500 V AC (field to system) WithstandVoltage 1500 V AC, 1 min PowerConsumption Max 5.5 W OperatingTemp 0 to 60 degC StorageTemp -20 to 85 degC Humidity 10% to 90% RH, non-condensing VibrationCompliance IEC 61131-2 Weight 0.6 kg Dimensions Dependent on baseplate configuration Origin Japan Channel-to-Channel Isolation and HART Compatibility The SEA4D-11 supports independent channel-to-channel isolation to mitigate ground loop and cross-talk effects. It passes HART signals superimposed on the 4-20 mA loop, enabling remote diagnostics and configuration without interrupting analog output. Cold junction compensation (CJc) ensures temperature measurement stability for RTD inputs. Frequently Asked Questions Q: Can the SEA4D-11 be replaced without shutting down the DCS?A: Yes, the module supports hot-swapping in dual-redundant configuration, allowing replacement online without process interruption. Q: What is the maximum input loop resistance supported for 4-20 mA signals?A: The module is designed to maintain accuracy with typical field loop resistances up to industry-standard values (~500 Ω), but actual limits depend on supply voltage and loop configuration. Q: Is firmware upgrade required for channel isolation functionality?A: No firmware updates affect isolation. Isolation is hardware-implemented per channel and continuously monitored. Field Installation Guidelines Mount the module on a compatible rack or baseplate, ensuring secure mechanical attachment. Maintain correct orientation to allow airflow and access for hot-swap operations. Connect field wiring to isolated terminals; observe polarity and shield grounding conventions. Avoid running signal cables parallel to high-voltage AC lines to prevent induced noise. Verify system grounding to maintain channel-to-channel and system-to-field isolation integrity. Conduct loop checks after installation to confirm signal continuity and proper RTD excitation.
$200.00 $100.00
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Yokogawa Yokogawa SEA4D-01 | Analog I/O Module
Yokogawa SEA4D-01 Analog I/O Module The Yokogawa SEA4D-01, also cataloged as the SEA4D-01 Analog Input Module, operates as a dedicated hardware component for 16-channel analog signal acquisition and isolation within ProSafe-RS safety instrumented systems. Hardware Specifications Parameter Specification ModelBrand Yokogawa SEA4D-01 Origin Japan Weight 3.311 lbs Dimensions 19 in length, rack-mountable OperatingTemp 0 to 60 degC PowerConsumption 5 V DC, approx. 300 mA Number of Channels 16 x 2 (dual configuration possible) Input Signal Type 4-20 mA DC, 1-5 V DC Input Impedance 250 Ohms (current input) Accuracy ±0.1% of full scale Temperature Coefficient ±0.01% / degC A/D Conversion 16-bit Insulation Resistance ≥100 M Ohms Withstand Voltage 500 VAC between channels, 1500 VAC channel-to-system Connection Type M4 screw terminal Safety Integrity Level SIL3 Mounting Type Rack-mountable, ProSafe-RS compatible Process Control & DCS Features Channel-to-Channel Isolation: Each analog input channel is electrically isolated to prevent cross-channel interference and maintain signal integrity across the I/O rack. 4-20 mA HART Loop Compatibility: Supports HART pass-through for device diagnostics and configuration without interrupting analog signal acquisition. Cold Junction Compensation (CJC): Ensures temperature-dependent measurement stability for analog inputs where applicable. Frequently Asked Questions Q: What are the hot-swap limitations for the SEA4D-01 module?A: Modules support online replacement without interrupting system operation, but ensure the baseplate bus is powered and redundant channels are active to maintain SIL3 compliance. Q: How should channel-to-channel isolation be verified during commissioning?A: Use insulation resistance measurements and verify 500 VAC withstand voltage between channels according to IEC 61131-2. Q: Can HART diagnostics operate simultaneously with analog signal acquisition?A: Yes, the module allows HART communication to pass through the analog channels without affecting real-time current or voltage measurement. Field Installation Guidelines Install modules onto the designated ProSafe-RS I/O baseplate following proper rack alignment. Connect field wiring to M4 screw terminals, ensuring torque is applied according to manufacturer specifications to maintain electrical and mechanical integrity. Ground shielded cables to prevent electromagnetic interference. Avoid running analog signal wiring parallel to high-current lines. Verify module seating and visual inspection of connector engagement before system power-up.
$200.00 $100.00
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Yokogawa Relay Output Terminal Board | Yokogawa SARM55W
Yokogawa SARM55W Relay Output Terminal Board The Yokogawa SARM55W, also cataloged as the SARM55W relay output terminal board, operates as a dedicated hardware component for discrete contact actuation within Yokogawa FIO digital output interface systems. Configured for field device switching in CENTUM VP / CS 3000 architectures, the Yokogawa SARM55W (SARM55W Relay Output Terminal Board) provides direct electrical relay execution between DO modules and external load circuits. Suffix Breakdown & Model Matrix SARM: Yokogawa standard relay output terminal assembly family for FIO systems 55W: 32-point wet contact relay output configuration with dual-line field power segmentation No additional suffix variants or functional sub-matrix definitions are specified in the provided documentation Hardware Specifications Parameter Specification ModelBrand Yokogawa SARM55W Origin Japan Weight 2.2 kg Dimensions W 482.6 mm x H 132.5 mm (3U) OperatingTemp 0 to 50 degC PowerConsumption 24 VDC, max 0.65 A (internal circuit) Contact Points 32-point relay output Max Load 250 VAC 0.6 A per point Max Load 30 VDC 0.6 A per point Max Load 125 VDC 0.1 A per point Insulation Resistance >= 10 MOhm (500 VDC) Withstanding Voltage 2 kV field-to-case, 500 V power-to-case Field Device Supply Dual-line, per 16-point group Process Control Interface Electrical Architecture Yokogawa process I/O architectures implement channel-level separation and controlled electrical isolation between field switching elements and system backplane logic. The SARM55W relay terminal board supports discrete output decoupling through mechanical contact isolation, ensuring separation between 24 VDC control power domains and external load circuits. In DCS integration environments, channel-to-channel electrical independence is maintained through relay segmentation, minimizing cross-conduction paths under mixed AC/DC switching conditions. The terminal architecture aligns with distributed I/O designs where field wiring density is concentrated at rack-level termination points, reducing cabinet-level wiring dispersion and improving signal routing determinism in DO execution paths. Frequently Asked Questions Q: Can the SARM55W support mixed AC and DC load switching on adjacent channels?A: Yes. Each relay channel is electrically isolated; however, load grouping must respect per-point current limits and field wiring separation standards. Q: Does the board require external suppression for inductive loads?A: External flyback or surge suppression is required at the field device level for inductive loads to prevent contact wear and arcing. Q: Is hot-swap supported for the terminal board during operation?A: Hot-swap behavior depends on system configuration; field termination should be de-energized prior to board removal to avoid relay contact stress. Field Installation Guidelines Maintain separation between AC and DC wiring harnesses on field terminal blocks Ensure torque specification compliance for M4 terminal screws to avoid contact resistance drift Use shielded cables for high-noise industrial environments and terminate shields at single-point ground only Verify insulation resistance before energizing field circuits (minimum 10 MOhm recommended threshold) Do not exceed per-point current limits to prevent relay contact degradation Confirm correct allocation of dual-line field power groups (16-point segmentation)
$200.00 $100.00
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Yokogawa Mechanical Relay Contact Output Module | Yokogawa SARM55C
Yokogawa SARM55C Mechanical Relay Contact Output Module Configured for mechanical relay dry contact actuation in CENTUM VP/CS 3000 FIO subsystems, the Yokogawa SARM55C (ARMS5C Mechanical Relay Contact Output Module) provides direct electrical execution of up to 32 relay output points to field devices with selectable NO or NC contacts. The module converts low-voltage 24 VDC internal signals into switched outputs capable of handling AC and DC loads. Dual-redundant wiring schemes are supported per 16-point segment, ensuring isolated channel operation and minimal cross-coupling. Relay contacts meet defined ON/OFF load ratings while maintaining insulation resistance above 10 MΩ and withstand voltage up to 2 kV AC between field terminals and chassis. Suffix Breakdown & Model Matrix SARM55C / ARMS5C refers to a fixed mechanical relay output board designation within Yokogawa FIO hardware. No additional suffix variants are defined in the provided dataset. Hardware Specifications Parameter Specification ModelBrand Yokogawa SARM55C Origin Japan Weight approx. 2.2 kg Dimensions 482.6 mm x 132.5 mm OperatingTemp 0 degC to 50 degC PowerConsumption 24 VDC, max 0.65 A internal circuit Channel Capacity 32-point mechanical relay contact output Contact Configuration NO/NC selectable per channel Maximum Load 250 VAC @ 2 A, 30 VDC @ 2 A, 125 VDC @ 0.1 A per point Minimum Load 5 VDC @ 10 mA Insulation Resistance >= 10 MΩ at 500 VDC Withstand Voltage 2 kV AC (field terminals to case), 500 V AC (power terminals to case), 2 kV AC (field to power terminals) Yokogawa Process Output Channel Architecture Channel-to-Channel Isolation and Redundant Output Domains The SARM55C implements electrical segregation per 16-point output group to reduce interference between adjacent relay channels. Mechanical relay contacts are designed to maintain isolation between control signals and high-voltage switched loads, while dual-line redundant output segments allow for safe sequential activation without channel-to-channel cross-talk. Frequently Asked Questions Q: Can SARM55C relay outputs switch both AC and DC loads simultaneously?A: Each channel is rated individually; AC and DC loads can be handled but simultaneous connection of multiple voltage types to the same contact is not recommended. Refer to maximum load ratings per channel. Q: Is the module suitable for hot-swap insertion in the backplane?A: Hot-swapping is not supported under live field conditions. De-energize both 24 VDC field and internal power before module removal to prevent contact arcing. Q: How is output contact polarity managed for NO/NC selection?A: Each output point provides mechanical selection of normally open or normally closed operation via internal relay configuration, without external wiring changes. Field Installation Guidelines Ensure all 24 VDC field and internal power supplies are de-energized before connecting M4 terminal screws. Route field cables separately from power distribution lines to avoid inductive coupling. Verify insulation resistance of 10 MΩ minimum at 500 VDC prior to commissioning. Tighten terminals according to industrial torque standards to prevent loose connections and intermittent switching. Mount on standard 19-inch rack with proper grounding of chassis to maintain EMC compliance.
$200.00 $100.00
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Yokogawa SARM15A | Mechanical Relay ContactInput Module | Yokogawa
Yokogawa SARM15A Mechanical Relay ContactInput Module Configured for dry contact acquisition in CENTUM VP field input architecture, the Yokogawa SARM15A (ARM15A Mechanical Relay Contact Input Module) provides direct physical/electrical execution for 32-point relay contact sensing across Yokogawa FIO input subsystems. The module implements a mechanical relay interface layer between field contact devices and downstream DI modules, translating contact resistance states into defined electrical ON/OFF thresholds under 24 VDC excitation. Redundant-capable field wiring supports dual-line power distribution per 16-point segment, enabling segmented field energization and controlled signal acquisition. Signal integrity is maintained through high off-state impedance discrimination and defined low-resistance ON detection boundaries. Suffix Breakdown & Model Matrix SARM15A / ARM15A refers to a fixed mechanical relay contact input module designation within Yokogawa FIO hardware line. No further publicly defined suffix segmentation is specified in the provided technical dataset. Hardware Specifications Parameter Specification ModelBrand Yokogawa SARM15A / ARM15A Origin Japan Weight approx. 2.2 kg Dimensions 482.6 mm x 132.5 mm OperatingTemp 0 degC to 50 degC PowerConsumption 24 VDC internal circuit, max 0.32 A Channel Capacity 32-point mechanical relay contact input Field Termination M4 screw terminals ON Threshold 150 ohm or less OFF Threshold 200 kohm or greater Field Supply 24 VDC dual-line, max 0.3 A per line Insulation Resistance >= 10 Mohm at 500 VDC Withstand Voltage up to 1.5 kVAC (field to case interface) Yokogawa Process Input Channel Architecture Channel-to-Channel Electrical Segregation Behavior Within Yokogawa FIO input structures, relay-based contact acquisition modules such as SARM15A implement physical channel grouping combined with electrical segmentation per 16-point field power domain. This structure reduces cross-point coupling under 24 VDC excitation conditions, particularly during simultaneous switching of mechanically driven dry contacts. The architecture maintains deterministic ON/OFF threshold interpretation through fixed resistance window discrimination rather than analog scaling methods such as 4-20 mA or HART-based loop evaluation. Frequently Asked Questions Q: Can the module be hot-swapped under energized field conditions?A: The module is not designed for field-side hot swapping. Removal requires de-energization of field 24 VDC supply lines and isolation of backplane interface to prevent contact arcing and signal corruption. Q: What is the electrical interpretation mechanism for ON/OFF states?A: ON state is determined by contact resistance below or equal to 150 ohm. OFF state is defined by resistance equal to or above 200 kohm, forming a discrete threshold window without analog interpolation. Q: Does the module provide per-channel electrical isolation?A: Isolation is implemented at field power segmentation level and internal circuit isolation barriers, rather than fully independent per-channel galvanic isolation. Field Installation Guidelines Ensure 24 VDC field supply is fully isolated before terminal engagement. Maintain M4 screw torque within standard industrial control cabinet tightening practice to prevent intermittent contact resistance drift. Route field cables (AKB331) separately from high-noise power conductors to avoid induced switching noise on dry contact lines. Verify insulation resistance before energizing field loop, minimum 10 Mohm at 500 VDC test condition. Maintain proper grounding of rack frame to reduce common-mode noise coupling into relay detection circuits.
$200.00 $100.00
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Yokogawa NFAI841-S50 Analog Input Module | Yokogawa
Yokogawa NFAI841-S50 Analog Input Module Configured for acquisition of 4 to 20 mA DC field loop signals in FOUNDATION Fieldbus based control architectures, the Yokogawa NFAI841-S50 (NFAI841 Analog Input Module) provides direct electrical conversion of analog current inputs into system-level process data for FIO backplane integration within Yokogawa distributed control systems. Suffix Breakdown & Model Matrix NFAI841: Base module type, analog input processing unit S50: Configuration/assembly variant (terminal and mounting specification dependent on system integration) No additional functional decomposition is defined for suffix S50 based on provided manufacturing data. Hardware Specifications Parameter Specification Model NFAI841-S50 Brand Yokogawa Origin Japan Module Type Analog Input Module Series FOUNDATION Fieldbus (FF) Channels 8 (AI, 4 to 20 mA DC) Input Signal 4-20 mA DC Input Accuracy +/-0.1% of full scale Input Impedance 250 ohm (power on), 500 kohm or more (power off) Output Current 25 mA Power Supply 24 VDC Power Consumption 3 W Operating Temperature -40 degC to +85 degC Ingress Protection IP66 Dimensions 35 mm (W) x 110 mm (H) x 58 mm (D) Weight Approx. 200 g FOUNDATION Fieldbus Analog Signal Interface Behavior The NFAI841-S50 executes 4 to 20 mA DC signal acquisition with mapping into FOUNDATION Fieldbus function block structures. Field device integration is performed through FF communication layers, allowing cyclic process variable updates from each of the 8 input channels into the control system scan cycle. The module input stage is designed without galvanic isolation between signal paths, requiring common grounding reference integrity across field wiring segments. Signal conditioning is performed at the A/D conversion stage prior to FF protocol encapsulation. Frequently Asked Questions Q: Can the NFAI841-S50 channels be hot-swapped during operation?A: Hot-swap capability depends on system rack configuration. The module itself supports field-side signal presence detection, but removal under load requires system-level FIO rack support. Q: Does each channel support individual electrical isolation?A: No. The module is specified as a non-isolated input design; all channels share a common electrical reference structure. Q: What happens if input current exceeds 20 mA range?A: Inputs above full-scale 20 mA may result in saturation at the A/D conversion stage without protective isolation limiting at channel level. Field Installation Guidelines Maintain shield grounding at a single-point earth reference to prevent loop current distortion Use twisted-pair cabling for all 4 to 20 mA loops to reduce electromagnetic coupling Ensure terminal torque and mechanical seating are consistent with Yokogawa FIO rack specifications Avoid mixed grounding potentials across field instruments connected to the same module Verify power supply stability at 24 VDC with minimal ripple before energizing module backplane
$200.00 $100.00
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Yokogawa Yokogawa NFAI841-S00/A4S00 | Analog I/O Module
Yokogawa NFAI841-S00/A4S00 Analog I/O Module Configured for simultaneous 4-20 mA signal acquisition and analog current output control in CENTUM VP and CENTUM CS 3000 systems, the Yokogawa NFAI841-S00/A4S00 (NFAI841 Analog I/O Module) provides direct electrical interfacing with field devices while maintaining system-level isolation. Suffix Breakdown & Model Matrix NFAI841: Mixed analog input/output module family for Yokogawa FIO systems -S00: Standard type without HART communication or explosion protection /A4S00: Terminal block configuration for pressure-clamp or standard field wiring Hardware Specifications Parameter Specification ModelBrand Yokogawa NFAI841-S00/A4S00 Origin Japan Weight Approx. 0.35 kg Dimensions Not specified OperatingTemp 0 degC to 60 degC PowerConsumption 5 VDC max 230 mA, 24 VDC max 190 mA Input Signals 4-20 mA DC Output Signals 4-20 mA DC Channels 4 input + 4 output Input Impedance 250 ohm Output Load Resistance 0 to 750 ohm Accuracy Input +/-0.1% FS Refresh Cycle 10 ms Isolation Channel-to-channel and system-to-field isolation Withstand Voltage 1500 VAC Yokogawa DCS Analog Loop & Channel Isolation The NFAI841-S00/A4S00 module features galvanic isolation between each analog channel and the system internal circuits to prevent ground loop interference. 4-20 mA loops support HART overlay signaling for device diagnostics and configuration without additional cabling. Each analog input and output channel maintains independent signal referencing, ensuring integrity during simultaneous acquisition and actuation. Cold junction compensation (CJc) is implemented to maintain accuracy over the specified temperature range. Frequently Asked Questions Q: Can this module be hot-swapped during operation?A: Yes. The module supports hot-swappable insertion and removal under power, but dual-redundant loop configuration is recommended for critical PID loops to prevent transient signal loss. Q: What is the maximum output load allowed?A: Output channels can drive loads up to 750 ohm. Exceeding this may result in current clipping or voltage saturation. Q: How is channel isolation maintained?A: Each input and output channel is isolated using photo-coupled barriers, preventing cross-talk and ground loop interference while maintaining full compliance with DCS system safety limits. Field Installation Guidelines Use twisted-pair shielded cable for all analog loops; terminate shields at a single cabinet ground point Maintain physical separation from high-voltage power conductors to reduce induced noise Confirm correct loop polarity before energizing modules Ensure secure module seating and proper backplane engagement to avoid intermittent contacts Avoid exceeding specified ambient temperature (0-60 degC) and humidity (10-90% RH) for stable operation Check terminal block wiring per /A4S00 configuration to ensure consistent current loop connectivity
$200.00 $100.00
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Yokogawa Yokogawa NFAI841-S00 Analog I/O Module
Yokogawa NFAI841-S00 Analog I/O Module Configured for direct electrical execution of 4-20 mA signal acquisition and analog current output handling in CENTUM VP and CENTUM CS 3000 FIO environments, the Yokogawa NFAI841-S00 (NFAI841-S00 Analog I/O Module) provides discrete channel-level analog interfacing without external signal conditioning stages. Suffix Breakdown & Model Matrix NFAI841: Analog Input/Output mixed I/O module family within Yokogawa FIO system S: Standard configuration variant 0: Fixed hardware revision identifier 0: Basic type designation without extended options Hardware Specifications Parameter Specification ModelBrand Yokogawa NFAI841-S00 Origin Japan Weight Approx. 0.43 kg OperatingTemp 0 degC to 60 degC PowerConsumption 5 VDC, max 410 mA Input Signal 4-20 mA DC Output Signal 4-20 mA DC Channels 4 input + 4 output Input Impedance 250 ohm Load Resistance (Output) <= 750 ohm Accuracy Input +/-0.1% FS, Output +/-0.3% FS Isolation Channel-to-channel and system isolation (photo-coupled) Withstanding Voltage 1500 VAC Refresh Cycle 10 ms Yokogawa DCS Analog Loop Isolation & HART Signal Handling The NFAI841-S00 implements channel-to-channel electrical isolation using photo-coupled barriers to prevent ground loop propagation across mixed analog I/O paths. Each 4-20 mA loop is independently referenced, allowing simultaneous current sourcing and sinking operations within a single module slot without cross-channel interference. HART-compatible field devices can be interfaced over the same 4-20 mA loop, enabling bidirectional digital overlay communication for device diagnostics and parameter access. Signal integrity is maintained through loop impedance control centered around 250 ohm input loading, ensuring stable modulation detection for HART FSK signaling under standard DCS scan cycles. Backplane execution is synchronized with a 10 ms refresh cycle, decoupling field signal sampling from controller scan timing. Frequently Asked Questions Q: Can input and output channels operate simultaneously in NFAI841-S00?A: Yes. Input and output sections are electrically independent with internal isolation, allowing concurrent 4-20 mA sourcing and measurement within the same module. Q: Does the module support hot-swap replacement?A: Replacement is supported at system level depending on CENTUM node configuration; field loops must be de-energized or placed in safe state before module extraction to avoid transient current spikes. Q: What is the impact of backplane current consumption on slot density?A: Each module draws up to 410 mA at 5 VDC. Slot loading must remain within node power budget to maintain stable backplane voltage regulation. Field Installation Guidelines Maintain shield continuity across analog loop cabling; terminate shield at single-point ground within control cabinet only Keep 4-20 mA loop wiring physically separated from high-voltage switching conductors to minimize inductive coupling Ensure correct polarity alignment for both input transmitter loops and output actuator loops before energization Verify module seating force and backplane connector engagement prior to system power application Avoid exceeding 750 ohm total loop resistance on output channels to prevent current saturation or clipping Use twisted-pair instrumentation cable for all analog channels to maintain signal integrity over extended runs
$200.00 $100.00
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Yokogawa Analog Input Module | NFAI141-S50 | Yokogawa
Yokogawa NFAI141-S50 Analog Input Module Configured for multi-channel analog signal acquisition in CENTUM VP and CENTUM CS 3000 I/O architectures, the Yokogawa NFAI141-S50 (NFAI141 Analog Input Module) provides direct physical/electrical execution of 4-20 mA, 1-5 V, and -10 to 10 V signal conversion into digital process data streams. Suffix Breakdown & Model Matrix NFAI141: 16-channel analog input module architecture -S50: Standard configuration variant (system-specific suffix definition dependent on CENTUM revision) Hardware Specifications Parameter Specification ModelBrand Yokogawa NFAI141-S50 Origin Japan Weight Approx. 0.34 kg Dimensions Not specified in source data OperatingTemp 0 to 60 degC PowerConsumption 3 W (nominal module load) Number of Channels 16 isolated analog inputs Input Signal Types 4-20 mA, 1-5 V, -10 to 10 V A/D Resolution 16-bit Data Update Cycle 10 ms Isolation Channel-to-channel isolation present Channel-to-Channel Isolation & DCS Signal Segregation Behavior The NFAI141-S50 implements channel-separated electrical isolation architecture within the Yokogawa DCS I/O framework. Each analog input channel is independently conditioned to reduce inter-channel coupling during simultaneous sampling of mixed signal types such as 4-20 mA current loops and voltage-based instrumentation inputs. This isolation structure supports stable digitization under mixed-load field wiring conditions, preventing cross-channel measurement distortion during high-density acquisition cycles in CENTUM node configurations. Frequently Asked Questions Q: Does the module support hot-swap replacement in live I/O racks?A: Hot-swap capability is dependent on system rack configuration. The module itself is designed for backplane-integrated insertion but requires system-level support for live replacement. Q: What is the maximum allowable input signal stress level per channel?A: Each channel supports up to approximately 24 mA input current under 4-20 mA mode. Voltage input limits follow module configuration ranges specified for 1-5 V and -10 to 10 V modes. Q: Are all channels galvanically isolated?A: The module provides channel-to-channel isolation to reduce measurement interference across parallel analog inputs. Field Installation Guidelines Field installation of the NFAI141-S50 requires strict adherence to shield grounding and signal segregation rules typical of DCS analog I/O systems. Twisted-pair cabling should be maintained for all 4-20 mA loops with shield termination performed at a single-point ground reference to avoid ground loop formation. Voltage input wiring must be separated from power conductors to minimize electromagnetic coupling. Backplane insertion force must be applied evenly to avoid connector pin stress. Terminal tightening should follow Yokogawa-approved torque specifications for spring clamp or screw terminal variants depending on rack design.
$200.00 $100.00
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Yokogawa Output Frequency Module | Yokogawa NFAF135-S50
Yokogawa NFAF135-S50 Output Frequency Module Configured for frequency pulse output generation in CENTUM VP and ProSafe-RS I/O architectures, the Yokogawa NFAF135-S50 (NFAF135-S50 Output Frequency Module) provides direct physical/electrical execution for digital frequency-based signal delivery within distributed control system I/O nodes. The module operates as a pulse and frequency output interface used to drive downstream instrumentation or process counters through isolated switching stages. Signal generation is implemented via internal timing logic synchronized to the host backplane, supporting deterministic output behavior under system scan control. Electrical separation between field terminals and internal logic is implemented through galvanic isolation barriers. The S50 suffix indicates a standardized hardware revision with environmental protection treatment and defined terminal interface configuration within Yokogawa I/O assembly families. Suffix Breakdown & Model Matrix No official public decomposition of internal model subfields for NFAF135-S50 is provided in the supplied technical data. The suffix "-S50" is treated as a manufacturing and configuration identifier indicating a specific hardware revision and protection/assembly variant within the same base module family. Hardware Specifications Parameter Specification ModelBrand Yokogawa NFAF135-S50 OperatingTemp -20 degC to 70 degC PowerConsumption < 350 mA at 5 VDC internal supply Module Type Output Frequency / Pulse Output Module Channels Typically 4 or 8 channels (system dependent) Output Range Frequency / pulse output, approx 0.1 Hz to 10 kHz (application dependent) Accuracy plus/minus 0.05 % full scale Isolation Galvanic isolation between field and logic circuits Response Time < 10 ms to 40 ms (system dependent scan cycle) DCS I/O Signal Architecture Characteristics (Yokogawa) The module is integrated into Yokogawa distributed control environments where backplane-based deterministic scheduling governs output refresh cycles. In mixed I/O nodes, channel-to-channel isolation structures reduce cross-coupling between adjacent frequency outputs. Within Yokogawa architectures, I/O segmentation may coexist with analog 4-20 mA HART loops and FOUNDATION Fieldbus segments, although this module itself is dedicated to discrete frequency generation rather than analog transmission. Internal timing alignment is derived from system scan synchronization rather than autonomous oscillator free-run control. Frequently Asked Questions Q: Can the NFAF135-S50 be hot-swapped during system operation?A: Hot-swap capability depends on the I/O base unit and system configuration. Electrical backplane isolation must be maintained before insertion or removal to prevent transient bus disturbance. Q: Does each channel operate with independent timing?A: Channel execution is generally synchronized to the system scan cycle. Independent asynchronous timing is not typically implemented at channel level. Q: What limits the maximum output frequency stability?A: Stability is governed by backplane scan resolution, internal timing clock distribution, and load characteristics on the output stage. Field Installation Guidelines Ensure all field wiring is terminated on the correct Yokogawa I/O terminal base assembly matching the NFAF135 series interface specification. Shielded cabling is required for frequency output lines in electrically noisy environments, with shield grounding performed at a single-point earth reference. Do not apply field voltage to output terminals prior to verifying backplane seating integrity. Module insertion must be performed with system power removed or under validated hot-swap procedures defined by the control system rack architecture. Maintain separation between frequency output wiring and high-energy switching conductors to reduce induced noise coupling. Terminal torque and conductor preparation shall follow standard industrial control panel wiring practices.
$200.00 $100.00
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Yokogawa Contact Output Module | Yokogawa F9342AB
Yokogawa F9342AB Contact Output Module Configured for physical output actuation in process control I/O execution within Yokogawa DCS hardware platforms, the Yokogawa F9342AB (F9342AB Contact Output Module) provides direct electrical switching of field devices through isolated relay contact channels. Suffix Breakdown & Model Matrix F9342AB is treated as a single complete ordering code. No validated manufacturer breakdown for suffix segmentation is provided in the supplied reference data; therefore, no internal model matrix decomposition is applied. Hardware Specifications Parameter Specification ModelBrand Yokogawa F9342AB Origin Japan OperatingTemp 0 to 55 degC PowerConsumption Approx 3 to 5 W (typical module dissipation) Module Type Contact Output Module (Relay Output) Channel Count 16 channels typical (system dependent configuration) Output Type Dry contact relay (Form A / Form C variants depending on configuration) Load Rating Up to 2 A per channel (derated by total module load) Isolation 1500 V AC or higher between field and logic circuits Response Time ON <= 10 ms, OFF <= 15 ms Process Control Output Channel Isolation Characteristics Within Yokogawa process control architectures, output modules of this class are aligned with DCS I/O segmentation principles, where channel-to-channel separation and field-to-backplane galvanic isolation are implemented to reduce interference coupling between switching elements. In typical configurations, relay output stages operate independently from system communication buses such as 4-20 mA HART or FOUNDATION Fieldbus segments, ensuring deterministic separation between logic execution layers and physical actuation circuits. Isolation design also mitigates back-EMF propagation from inductive loads such as solenoids and motor contactors into the control backplane. Frequently Asked Questions Q: Can the F9342AB module channels be hot-swapped during operationA: Hot-swap capability depends on the base rack system configuration. In supported Yokogawa chassis, module replacement is allowed with backplane isolation maintained, but field wiring energization state must be verified before insertion or removal. Q: Does each channel share a common return path or individual isolationA: Channel grouping depends on sub-backplane architecture. Standard configurations implement grouped commons with internal isolation barriers between logic and field output stages. Q: What type of load protection is required for inductive switchingA: External flyback suppression (RC snubber or diode clamp for DC loads) is required to limit contact arcing and extend relay life cycle under inductive switching conditions. Field Installation Guidelines Ensure backplane power is fully isolated before module insertion or removal unless chassis explicitly supports live hot-swap procedures. Maintain separation between field wiring and communication cables to reduce electromagnetic coupling into relay output lines. Use twisted pair or shielded conductors for inductive load connections where applicable. Shield termination should be grounded at a single-point earth reference. Verify total channel current does not exceed module derating curve, especially when multiple channels are simultaneously energized. Tighten terminal connections to manufacturer torque specification to avoid contact resistance increase under vibration conditions.
$200.00 $100.00
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Yokogawa F3AD08-4V | Analog Input Module | Yokogawa
Yokogawa F3AD08-4V Analog Input Module The Yokogawa F3AD08-4V, also cataloged as the F3AD08-4V Analog Input Module, operates as a dedicated hardware component for converting analog voltage signals into digital data within FA-M3 programmable logic controllers. It directly interfaces with field instruments to provide high-resolution voltage measurements across eight independent channels. Hardware Specifications Parameter Specification ModelBrand Yokogawa F3AD08-4V Origin Japan Weight Approx. 180 g Dimensions Standard FA-M3 module size OperatingTemp 0 degC to 55 degC StorageTemp -20 degC to 75 degC PowerConsumption 5 VDC: 100 mA 24 VDC: 100 mA InputChannels 8 (voltage, non-isolated between channels) InputSignalRange -10 VDC to +10 VDC, 0 VDC to 10 VDC, 1 VDC to 5 VDC InputImpedance Approx. 1 MΩ MaximumAllowableInput ±15 VDC A/DConversionResolution 16-bit (sign + 15-bit) Accuracy ±0.1% of full scale ConversionSpeed Approx. 100 μs/channel InsulationResistance ≥ 10 MΩ at 500 VDC WithstandVoltage 500 VAC, 1 min ExternalConnection 18-point detachable terminal block (M3 screws) Process Control Features Supports 4-20 mA HART loop protocol via analog input conversion. Implements channel-to-channel isolation to reduce signal interference between voltage inputs. Includes cold junction compensation (CJC) for sensors that require thermal reference adjustments. Frequently Asked Questions Q: Does the F3AD08-4V support hot-swapping?A: No, the module is not designed for hot-swap operations and must be powered down before insertion or removal. Q: Can the module handle voltage signals exceeding the specified range?A: Input voltages beyond ±15 VDC may damage the module. All signals must remain within the rated range for proper operation. Q: How is the analog input scaling configured?A: Scaling is performed via the FA-M3 CPU software using standard analog input setup routines; hardware provides linear voltage-to-digital conversion. Field Installation Guidelines Mount the module onto the FA-M3 backplane with proper alignment to avoid connector strain. Ensure all field wiring is twisted and shielded where possible; connect shields to protective ground at a single point. Avoid running analog signal lines in parallel with high-voltage or high-frequency power cables. Confirm that terminal screws are tightened to manufacturer torque specifications to maintain reliable electrical contact. Maintain the specified ambient temperature and humidity ranges to ensure accurate A/D conversion and module longevity.
$200.00 $100.00
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Yokogawa Yokogawa ASI533 Analog Input Module
Yokogawa ASI533 Analog Input Module The Yokogawa ASI533, also cataloged as the ASI533 Analog Input Module, operates as a dedicated hardware component for processing 4-20 mA analog signals within CENTUM DCS platforms. It provides precise digitization and channel isolation for field transmitters, flowmeters, and pressure sensors. Hardware Specifications Parameter Specification Model/Brand ASI533 / Yokogawa Origin Japan Number of Channels 16 channels (isolated) Input Signal Range 4-20 mA DC Input Impedance Approx. 250 Ohm A/D Conversion Resolution 16-bit Accuracy ±0.1% of full scale at normal operating temperature Temperature Coefficient ±0.005% of full scale per degC Data Refresh Cycle 10 ms (all channels) Isolation Voltage 500 V AC between input channels and internal circuitry; 500 V AC between individual input channels HART Communication Supported (HART 7 compliant, pass-through) Transmitter Power Supply 24 V DC ±10% (short-circuit protected per channel) Current Consumption Max. 450 mA (at 5 V DC internal system power) External Connection Dedicated pressure-clamp terminal block or KS cable interface Operating Temperature 0 to 60 degC Storage Temperature -20 to 85 degC Relative Humidity 10% to 90% RH (non-condensing) Weight Approx. 0.35 kg Mounting Baseplate mounting (slots into standard I/O nest) DCS Interface Features Channel-to-Channel Isolation: Each input channel is galvanically isolated, preventing ground loop interference and ensuring signal integrity across multi-channel measurements. Cold Junction Compensation (CJC): Internal compensation reduces temperature-induced drift for precision ADC performance. 4-20 mA HART Loop Protocol: Enables bidirectional communication over existing analog signal lines, supporting device diagnostics and configuration without interrupting loop operation. FOUNDATION Fieldbus / Profibus PA Connectivity Compatibility: Signals can be seamlessly integrated with standard process automation networks. Frequently Asked Questions Q: VnA: Can the ASI533 be replaced without shutting down the DCS node?A: Yes, the module supports hot-swap replacement, maintaining power and communication to other modules in the node. Q: VnA: What is the recommended practice for wiring the 4-20 mA inputs to minimize noise?A: Use twisted pair shielded cables and connect shields to the designated system ground at one end only. Q: VnA: How does the module handle HART communication while measuring analog current?A: HART signals are superimposed on the 4-20 mA loop and passed through without affecting ADC accuracy. Field Installation Guidelines Ensure the module slots fully into the designated I/O nest and locks mechanically to prevent vibration-induced disconnection. Route analog signal cables separately from high-power or switching lines to reduce electromagnetic interference. Connect shielded cable grounds at a single point to prevent ground loops; avoid multiple grounding points. Confirm the 24 V DC transmitter power supply is within ±10% and short-circuit protection is active per channel. Maintain operating ambient temperature within 0 to 60 degC and avoid corrosive atmospheres. When performing hot-swap replacement, observe ESD precautions and verify node communication after insertion.
$200.00 $100.00
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Yokogawa Digital Output Module with Built-in Barrier | Yokogawa | ASD533
Yokogawa ASD533 Digital Output Module with Built-in Barrier Configured for isolated digital output signal execution in the Yokogawa FIO subsystem, the Yokogawa ASD533-S00 (ASD533 Digital Output Module with Built-in Barrier) provides direct physical/electrical execution. The module integrates intrinsic safety barrier functions within the hardware and supports 8 isolated output channels for field device actuation through CENTUM VP and CENTUM CS 3000 platforms. Suffix Breakdown & Model Matrix Model Description ASD533-S00 Standard specification Digital Output Module with Built-in Barrier /G3 (optional) ISA Standard G3 conformal coating for corrosive environments Hardware Specifications Parameter Specification Model ASD533-S00 Brand Yokogawa Origin Japan Module Type Digital Output Module with Built-in Barrier System Family CENTUM VP / CENTUM CS 3000 FIO System Number of Channels 8 isolated channels Output Type Digital voltage/current output Output Voltage Greater than 12 V at 40 mA Output Current Up to 40 mA per channel Isolation Field-to-system and channel-to-channel galvanic isolation Redundancy Support Dual-redundant configuration supported Compatible Terminal Blocks ATSD3S, ATSD3D Hot Swap Capability Supported during online maintenance Weight Approx. 0.5 kg Operating Temp -20 degC to 70 degC Storage Temp -40 degC to 85 degC Ambient Humidity 5 % to 95 % RH, non-condensing Power Consumption Not specified in available data Channel-to-Channel Isolation Characteristics As a Yokogawa process control module, the ASD533 incorporates galvanic isolation between field circuits and internal system electronics. The integrated barrier architecture reduces the requirement for separate external intrinsic safety barrier assemblies while maintaining electrical separation between output channels and the DCS backplane interface. The isolation structure is intended to limit ground loop propagation and reduce the transfer of surge energy from hazardous-area field wiring into the control system infrastructure. Frequently Asked Questions Q: Does the ASD533 support online replacement during operation?A: Yes. The module supports hot-swappable replacement procedures within compatible FIO node configurations, allowing maintenance without complete system shutdown. Q: Which terminal assemblies are supported by the ASD533?A: The module is compatible with ATSD3S terminal blocks for single configurations and ATSD3D terminal blocks for dual-redundant configurations. Q: Is an external intrinsic safety barrier required for each output channel?A: The ASD533 incorporates a built-in barrier function. Application compliance remains dependent on the overall system design, field wiring method, and hazardous-area engineering requirements. Field Installation Guidelines Verify module and terminal block compatibility before installation. De-energize field circuits when connecting or disconnecting field wiring unless approved maintenance procedures permit online work. Separate intrinsically safe wiring from non-intrinsically safe circuits according to site electrical standards. Connect cable shields according to plant grounding philosophy to minimize induced noise and ground loop effects. Confirm terminal identification and channel assignment before energizing output circuits. Maintain adequate cabinet ventilation to keep ambient operating temperature within specified limits. For corrosive environments, use modules specified with the optional G3 conformal coating when required by site conditions. Follow CENTUM VP or CENTUM CS 3000 engineering documentation for redundant module configuration and commissioning procedures.
$200.00 $100.00
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Yokogawa Analog Input Module | Yokogawa | ASD143-P00
Yokogawa ASD143-P00 Analog Input Module The Yokogawa ASD143-P00, also cataloged as the ASD143 Analog Input Module, operates as a dedicated hardware component for 4-20 mA signal acquisition within CENTUM CS 3000 and CENTUM VP systems. It converts field current inputs into digital data for process control execution and supports dual-redundant configurations for continuous loop operation. Hardware Specifications Parameter Specification Model Brand Yokogawa Origin Japan Module Type Analog Input Module (Current Input) Number of Channels 16 isolated Input Signal Range 4-20 mA DC Input Impedance Approx. 250 Ω A/D Conversion Resolution 16-bit Accuracy ±0.1% full scale System Side Isolation Optocoupler isolation (Field-to-System) Withstand Voltage 1500 V AC between field terminals and system Configuration Dual-redundant capable Maximum Current Consumption Dependent on system rack configuration Weight 0.3-0.4 kg (depending on housing) Dimensions Standard DCS module form factor Operating Temp 0 to 60 degC Storage Temp -20 to 85 degC Power Consumption 5 V DC system power typical Process Control Features 4-20 mA HART Loop Compatibility: Supports analog input from transmitters with standard 4-20 mA current signals and can carry HART communication signals without interruption. Channel-to-Channel Isolation: Each input channel is electrically isolated to prevent cross-talk and ground loops between field devices and system bus. Cold Junction Compensation (CJC): Integrated temperature sensing for compensation ensures accurate signal conversion from transmitters sensitive to ambient temperature variations. Frequently Asked Questions Q: What is the maximum hot-swap duration for this module?A: The ASD143-P00 can be replaced online while maintaining loop integrity; switching time is governed by DCS redundant logic but typically completes without process interruption. Q: How is galvanic isolation implemented on this module?A: Field-to-system isolation is achieved via optocouplers on each channel to suppress surges and prevent signal interference between channels. Q: Can firmware updates be applied without system shutdown?A: Firmware maintenance requires system-level coordination; the module supports redundant operation, but hot firmware flash must follow Yokogawa CS/VP guidelines. Field Installation Guidelines Mount module according to rack alignment; ensure correct slot insertion to maintain redundant bus continuity. Connect input wiring to terminals with shielded twisted pairs; terminate shields at single-point ground near the rack. Avoid routing high-power AC lines or heavy motor wiring adjacent to signal cables to minimize EMI. Ensure proper airflow in the cabinet; maintain ambient temperatures within 0-60 degC. Verify isolation gaps and field voltage limits before energizing; the module withstands 1500 V AC between field and system.
$200.00 $100.00
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Yokogawa ALU4*D Modular I/O System | Yokogawa
Yokogawa ALU4*D Modular I/O System The Yokogawa AAI141, also cataloged as the ALU4D* Analog Input Module, operates as a dedicated hardware component for 4-20 mA DC signal acquisition within Yokogawa CENTUM VP and CENTUM CS 3000 distributed control systems. Hardware Specifications Parameter Specification Model Brand Yokogawa ALU4*D Series Origin Japan Weight 0.2 kg Dimensions Standard DIN-rail mount modular width Operating Temp 0 to 60 degC Power Consumption 310 mA @ 5 VDC, 450 mA @ 24 VDC Number of Input Channels 16, non-isolated Input Signal Range 4 to 20 mA DC, 1 to 5 V DC, -10 to 10 V DC Allowable Common Mode Voltage ±1 V or less Input Resistance (Power ON) 400 Ohm @ 20 mA, 1000 Ohm @ 4 mA, 1 MOhm or larger Input Resistance (Power OFF) 500 kOhm or larger, 340 kOhm or larger, 660 kOhm or larger Accuracy ±16 uA, ±4 mV, ±20 mV Data Update Period 10 ms Step Response Time 100 ms Transmitter Power Supply 14.8 V or higher @ 20 mA, 26.4 V or less @ 0 mA Output Current Limit 27 mA 4-20 mA HART Loop Protocol Handling Channel-level configuration pins define 2-wire or 4-wire transmitter excitation sourcing. The module supplies a regulated 24 VDC loop power rail to active field devices. The input circuitry tolerates a maximum common mode voltage of ±1 V DC. Transmitter supply voltage regulation maintains output above 14.8 V DC under full 20 mA load conditions. The input resistance profile scales inversely with current magnitude, presenting 400 Ohm at 20 mA and rising to 1000 Ohm at 4 mA. This characteristic requires verification against field transmitter load drive capability specifications. Frequently Asked Questions Q: Does the ALU4*D support hot-swapping while the CENTUM VP node is operational? A: Yes, the module supports online replacement. The system backplane maintains communication integrity during the exchange procedure. Verify that the replacement unit matches the existing I/O assignment configuration prior to insertion. Q: What is the impact of non-isolated channel design on wiring practices? A: All 16 input channels share a common reference potential. Field wiring must ensure that external sensor grounds do not introduce ground loops exceeding the ±1 V common mode limit. Use isolated barrier devices if field device grounding conflicts occur. Q: How does temperature drift affect calibration intervals? A: Accuracy drift is specified at ±16 uA per 10 degC. For applications requiring sustained high precision, perform field calibration checks when ambient temperature variations exceed 30 degC from the initial calibration environment. Field Installation Guidelines Mount the module onto the dedicated Yokogawa baseplate assembly. Use the pressure clamp terminal blocks for field wiring termination. Ensure that the shield drain wire connects directly to the designated earth ground point on the baseplate to maintain signal integrity. Torque terminal screws to the manufacturer-specified value to prevent thermal expansion loosening. Verify that the KS cable or MIL connector routing avoids parallel runs with high-voltage power conductors to minimize electromagnetic interference pickup.
$200.00 $100.00
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Yokogawa AEA4D-01 | Analog Input Terminal Board Yokogawa
Yokogawa AEA4D-01 Terminal Board The Yokogawa AEA4D-01, also cataloged as the AEA4D Terminal Board, operates as a dedicated hardware component for analog signal interfacing within CENTUM and ProSafe-RS systems. It provides physical termination and routing for field instruments to Yokogawa FIO modules, supporting both single and dual-redundant I/O configurations. Hardware Specifications Parameter Specification ModelBrand Yokogawa AEA4D-01 Origin Japan Weight 1.5 kg Dimensions Dual-row vertical terminal block, standard panel mount OperatingTemp -20 degC to +70 degC AmbientHumidity 5% to 95% RH (non-condensing) TerminalScrewType M4 Screw Terminals ChannelCapacity 16 channels (8 points x 2 blocks) SignalConfiguration Single or dual-redundant analog InsulationResistance ≥ 100 MOhm at 500 VDC WithstandingVoltage 500 VAC for 1 minute ConnectionCable Yokogawa KS1 signal cable MountingMethod 19-inch rack or panel with 4 x M5 screws Process Control DCS Features The AEA4D-01 supports 4-20 mA HART loop protocol and maintains channel-to-channel isolation for noise suppression. Cold junction compensation (CJc) is applied internally to reduce temperature-induced drift. Dual-redundant port architecture enables uninterrupted signal routing during FIO module replacement or failure, maintaining DCS operational integrity. Frequently Asked Questions Q: VnA: Can the AEA4D-01 support hot-swap of FIO modules?A: Yes, field wiring remains undisturbed, and module replacement can be conducted without powering down the I/O rack. Q: VnA: What is the maximum cable length for connecting field instruments?A: Standard Yokogawa KS1 cable specifications should be followed; length is determined by analog signal attenuation and noise margin. Q: VnA: Is surge protection integrated?A: No, the standard suffix (-0/-1) models are supplied without surge absorbers; external protection must be implemented if required. Field Installation Guidelines Mount the terminal board on a standard 19-inch rack or panel using 4 x M5 screws. Connect field instrument cables using M4 screw terminals ensuring torque per industrial standards to maintain gas-tight contact. Maintain separation of analog signal cables from power lines to prevent electromagnetic interference. Ground shielding at one end only to avoid ground loops. Verify dual-redundant port connections when configuring for hot-standby operation. Avoid mechanical stress on cables during installation to prevent signal degradation.
$200.00 $100.00
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Yokogawa Contact Output Module | ADC32-S1 | Yokogawa
Yokogawa ADC32-S1 Contact Output Module The Yokogawa ADC32-S1, also cataloged as the ADC32 Contact Output Module, operates as a dedicated hardware component for isolated relay switching across 32 channels within ProSafe-RS safety systems. Hardware Specifications Parameter Specification ModelBrand Yokogawa ADC32-S1 Origin Japan Weight 0.5 kg Dimensions 6.56 cm × 7.20 cm × 5.23 cm OperatingTemp -10 to +55 degC HumidityRange 5% to 95% RH (Non-condensing) NumberOfChannels 32 isolated outputs OutputType Relay contact (dry contact) SwitchConfiguration On/Off, Sink or Source capability LEDStatusIndicators Yes, per channel WithstandingVoltage 500 VDC to 1500 VAC, 1 min PowerConsumption Per module nominal, refer to datasheet SIS-Specific Signal Characteristics The ADC32-S1 provides galvanic isolation for all 32 output channels, ensuring separation between field wiring and internal safety logic. Each channel supports positive contact feedback to confirm switching events, maintaining compliance with SIL-rated safety loops. Channel-to-channel isolation mitigates cross-talk, allowing simultaneous switching of multiple actuators without signal interference. Frequently Asked Questions Q: VnA: Can the ADC32-S1 outputs drive both sourcing and sinking devices?A: Yes, each channel is configurable to sink or source current according to connected actuator requirements, within the rated voltage/current limits. Q: VnA: What is the maximum switching voltage and current per channel?A: Refer to the module datasheet; typical ratings support up to 24–30 VDC for safe loop operation. Exceeding rated values may compromise isolation. Q: VnA: Is the ADC32-S1 suitable for hot-swapping in a live ProSafe-RS rack?A: No. Module insertion or removal must occur with the backplane de-energized to prevent logic or relay damage. Field Installation Guidelines Mount the module into standard Yokogawa FIO backplane slots with firm mechanical engagement. Ensure all output field wiring is shielded and terminated with proper grounding to reduce EMI. Keep high-current and signal wiring physically separated to prevent inductive coupling. Confirm backplane voltage is removed before module installation or removal. Verify channel LED indicators illuminate correctly after installation to confirm electrical continuity. Avoid exceeding environmental limits of temperature and humidity; maintain non-condensing conditions.
$200.00 $100.00
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Yokogawa Analog I/O Module | AAB841 | Yokogawa
Yokogawa AAB841 Analog I/O Module Configured for signal conversion and loop execution in Yokogawa CENTUM series distributed control systems, the Yokogawa AAB841-S50 (base model AAB841 Analog I/O Module) provides direct electrical interfacing between field instrumentation and controller backplanes. It processes 1-5 V DC differential inputs and drives 4-20 mA outputs within a single slot footprint. Suffix Breakdown & Model Matrix Code Definition AAB841 Base Model: 8-channel input / 8-channel output, Non-isolated Differential -S Standard Type 5 Without explosion protection 0 Basic type Hardware Specifications Parameter Specification Brand Yokogawa Origin Japan Weight 0.3 kg Dimensions Single Slot Width (Standard DCS Rack) Operating Temp 0 to 55 degC Power Consumption 310 mA @ 5 VDC, 250 mA @ 24 VDC Input Signal 1 to 5 V DC (Non-Isolated Differential) Output Signal 4 to 20 mA DC Input Resistance Power ON: >= 1 MΩPower OFF: >= 340 kΩ Allowable Input Voltage +/- 7.5 V DC Allowable Common Mode Voltage +/- 1 V DC or less Accuracy Input: +/- 4 mVOutput: +/- 48 uA Data Update Period 10 ms Step Response Time Input: 100 msOutput: 40 ms Temperature Drift +/- 0.1 % / 10 degC External Connection Dedicated KS Cable HART Communication Available on Current Input/Output 4-20 mA HART Loop Protocol Integration The module supports HART protocol communication superimposed on the 4-20 mA current loop. This allows simultaneous transmission of analog process variables and digital device status data over a single pair of wires. The module does not supply transmitter power; external loop power sourcing is mandatory. HART signal integrity requires a minimum loop impedance of 250 ohms for proper modulation detection by the host system. Frequently Asked Questions Q: Can this module be hot-swapped while the rack is powered? A: No. Due to the non-isolated nature of the input channels and the requirement to prevent transient backplane surges, power must be removed from the node before insertion or removal. Q: What is the impact of common mode voltage exceeding +/- 1 V DC? A: Exceeding the allowable common mode voltage range will result in input signal clamping and potential damage to the internal A/D conversion circuitry. Ensure field wiring reference grounds are within specified limits. Q: Is galvanic isolation provided between channels? A: No. The AAB841 is a non-isolated module. Channel-to-channel isolation is not present; all inputs share a common reference plane. Field Installation Guidelines Install the module into the designated DCS I/O slot ensuring the ejector levers fully seat the connector pins. Use only the specified KS cable for field termination. For HART-enabled loops, ensure shield drain wires are terminated at a single point to the cabinet ground bus to prevent ground loops. Verify that the external 24 VDC power supply for the current loops is stable and free of ripple before energizing the module. Do not exceed the maximum backplane current draw of 310 mA at 5 VDC.
$200.00 $100.00
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Yokogawa Analog Input Module | Yokogawa AAB841-S00
Yokogawa AAB841-S00 Analog Input Module Configured for analog signal acquisition in CENTUM VP and CENTUM CS 3000 distributed control systems, the Yokogawa AAB841-S00 (AAB841 Analog Input Module) provides direct electrical interfacing between field instrumentation and control processors via 4–20 mA and 1–5 V DC input channels. Hardware Specifications Parameter Specification Model Brand Yokogawa AAB841-S00 Origin Japan Weight 0.35 kg Dimensions 12.5 cm x 10.5 cm x 3.5 cm Operating Temp 0 to 55 degC Power Consumption Max. 300 mA @ 5 VDC Number of Channels 8, isolated Input Signals 4–20 mA DC, 1–5 V DC Input Impedance 250 ohm (current), ≥1 Mohm (voltage) Withstanding Voltage 1500 V AC (signal–system), 500 V AC (channel–channel) Accuracy ±0.1% of full scale Data Refresh Cycle 100 ms Connection Type Pressure clamp terminal or dedicated cable Channel-to-Channel Isolation Characteristics Channel-to-channel isolation eliminates ground loops and suppresses common-mode noise between input circuits. Each channel employs independent signal conditioning paths referenced to isolated internal potential planes. Isolation withstand ratings are maintained per Yokogawa FCS design standards to prevent cross-circuit fault propagation during transient overvoltage events. Frequently Asked Questions Q: Does the AAB841-S00 support hot-swapping? A: Yes, when installed in a dual-redundant I/O node configuration, the module can be replaced online without interrupting control execution. Q: What is the backplane current load for this module? A: Maximum backplane current draw is 300 mA at 5 VDC system power. Q: Are input channels galvanically isolated from the system bus? A: Yes, the module provides 1500 V AC isolation between input signals and the system side. Field Installation Guidelines Mount the module in designated I/O slot positions within the Yokogawa FCS or node unit. Use shielded twisted-pair cabling for all analog input wiring. Connect shield drains to the common ground bus at the cabinet entry point only. Ensure torque specifications on pressure clamp terminals meet Yokogawa-recommended values (typically 0.5 N·m). Verify input polarity before applying power. Perform gap voltage checks after installation to confirm correct signal referencing.
$200.00 $100.00
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