Schneider Electric TSX3721001 Modicon TSX Modular Base Controller Configured for cyclic program execution and distributed I/O coordination in TSX Micro...
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Keterangan
Schneider Electric TSX3721001 Modicon TSX Modular Base Controller
Configured for cyclic program execution and distributed I/O coordination in TSX Micro architecture, the Schneider Electric TSX3721001 (TSX Micro 37 21/22 PLC configurations) provides direct backplane-level processing and serial fieldbus communication within Modicon TSX control platforms.
The unit operates as a modular base controller with integrated power supply, supporting deterministic scan execution, event task handling, and multi-protocol serial connectivity via Uni-Telway and Modbus RTU. Internal memory segmentation supports RAM, flash, and optional PCMCIA expansion for program and data handling.
Suffix Breakdown & Model Matrix
TSX3721001 is a single defined catalog number within the Modicon TSX Micro series. No further manufacturer-defined suffix segmentation is provided in the supplied technical dataset. Internal configuration variations are handled via system memory expansion (PCMCIA) and task structure assignment rather than order-code suffix extensions.
Hardware Specifications
Parameter
Specification
ModelBrand
Schneider Electric TSX3721001
Origin
France
Weight
1.72 kg
Dimensions
341.4 mm x 151 mm x 152 mm
OperatingTemp
0 degC to 60 degC
PowerConsumption
16 W total useful secondary power
Input Voltage
100 to 240 VAC (90 to 264 VAC range)
Serial Interfaces
1 x Uni-Telway, 1 x Modbus RTU (19.2 kbit/s)
Memory
20 Kwords RAM + up to 128 Kwords PCMCIA expansion
Task Structure
1 master task, 1 fast task, 16 event tasks
Protection
Overload and short-circuit protection
PLC Backplane Execution & Communication Timing (Schneider Electric PLC Architecture)
The TSX Micro platform executes control logic through a centralized backplane bus where cyclic scan timing is coordinated between master and fast tasks. Deterministic execution is maintained via fixed task scheduling and memory-mapped I/O areas (%MW, %Mi, %KWi).
Backplane communication is synchronized with internal cycle time scheduling, allowing mixed Boolean and floating-point operations without dynamic jitter under standard load conditions. Firmware execution paths support PCMCIA-based memory extension, enabling alternative program storage mapping without altering core scan engine timing.
Frequently Asked Questions
Q: Does TSX3721001 support hot-swapping of modules? A: The base controller does not support live hot-swapping of the CPU module. I/O module exchange is dependent on rack power state and system configuration.
Q: How is backplane current loading managed? A: Backplane load is regulated through internal 16 W secondary power budget with overload and short-circuit protection at system level.
Q: Can firmware be expanded via PCMCIA without stopping execution? A: PCMCIA memory expansion is recognized at boot-level initialization. Runtime firmware replacement during active scan is not supported.
Field Installation Guidelines
The TSX3721001 shall be mounted on a standard Modicon TSX rack with verified mechanical locking on DIN rail support structure. Shielded serial cables must maintain single-point earth grounding to avoid ground loop formation across Uni-Telway and Modbus RTU segments. Backplane connectors must be inspected for full seating alignment prior to energization. Minimum clearance shall be maintained to ensure convection airflow across chassis housing under 60 degC ambient operation.
