Description

Yokogawa NFCP501-S05 S1 Field Control Processor Module

The Yokogawa NFCP501-S05 S1, also cataloged as the NFCP501 Field Control Processor Module, operates as a dedicated hardware component for executing control logic and managing I/O communications within the CENTUM VP Distributed Control System.

HardwareSpecifications

Parameter	Specification
ModelBrand	NFCP501-S05 S1
Origin	Japan
Weight	1.2 kg (typical)
Dimensions	160 mm × 130 mm × 35 mm
OperatingTemp	0 to 50 degC
PowerConsumption	5 V DC, 2.5 A–3.0 A (full station load)
ProcessorType	32-bit Industrial Microprocessor
MemoryConfiguration	ECC RAM & Non-volatile Flash Memory
ControlCycleTime	Configurable, typically 50 ms or 100 ms
CommunicationInterface	Dual-redundant Vnet/IP 1000Base-T Ethernet
RedundancySupport	Dual-redundant configuration
Mounting	Slot-mounted in Yokogawa FCU baseplate
CoolingMethod	Natural air circulation (fanless design)

Process Control Features

The NFCP501-S05 S1 provides channel-to-channel isolation to prevent interference between simultaneous control loops. Cold junction compensation (CJC) is supported for temperature input channels to maintain precise readings across thermocouple-based sensors. Integrated 4-20 mA HART loop protocol facilitates digital communication over analog channels without disrupting the signal. FOUNDATION Fieldbus and Profibus PA connectivity are supported through optional gateway interfaces, ensuring seamless network integration.

Frequently Asked Questions

Q: Can this module be hot-swapped in a running FCU?
A: Hot-swap is supported only if the backup module is active in a dual-redundant configuration. Single-module operation requires a complete system shutdown.

Q: What is the redundancy switch-over time?
A: Switch-over to the redundant module occurs within a few milliseconds, preserving active control loops without interruption.

Q: Is firmware from a different style code compatible?
A: Only firmware matching the exact style code S1 should be used. Mismatched firmware may prevent synchronization in dual-redundant setups.

Field Installation Guidelines

1. Mount the module in a Yokogawa FCU slot, ensuring firm mechanical engagement.
2. Ensure Vnet/IP ports are connected using shielded twisted-pair cables with proper grounding to reduce EMI.
3. Maintain clear airflow around the module; avoid enclosing the unit in sealed compartments to prevent thermal accumulation.
4. Follow standard industrial ESD precautions during handling and installation.
5. Keep the module away from high-voltage switching equipment or strong magnetic fields to maintain signal integrity.

Specifications

• Brand: Yokogawa

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems