TSX3721101 Schneider Modicon TSX Micro PLC Base Controller
September 11, 2026

TSX3721101 Schneider Modicon TSX Micro PLC Base Controller

TSX3721101 is Schneider Modicon TSX Micro series modular PLC base controller with 3 expansion slots, powered by DC24V (19.2~30V DC). It integrates Uni-Telway and Modbus RTU serial ports, built-in real-time clock and PCMCIA memory card socket for program backup and memory expansion. Suitable for packaging machinery, conveyor systems, water treatment and general discrete automation. It is an end-of-life spare part.

Description

TSX3721101 belongs to Schneider Modicon TSX Micro PLC family, DIN rail mounting, protection class IP20. Total secondary power supply 16W for expansion modules. Built-in 20Kwords RAM, expandable up to 128Kwords program and data storage via PCMCIA flash memory card. Boolean instruction execution time is 0.13µs, supports one master task, one fast task and 16 event tasks.

Communication interfaces include Uni-Telway at 19.2kbit/s and Modbus RTU serial channel for connecting HMI, variable drives and remote I/O modules. LED indicators on front panel display power, running and fault status for fast on-site troubleshooting. Operating temperature 0~60℃. It can be fitted with various TSX series digital I/O, analog and communication modules for flexible configuration.

TSX3721101 is obsolete Schneider PLC spare part. Many legacy automation machines still adopt TSX Micro control systems. When the original base controller fails, replacement with identical TSX3721101 can reuse DIN rail installation, expansion modules and existing PL7 project. Technicians install the unit, download PLC program and verify I/O and serial communication, so machine control system resumes operation and reduces downtime.

Before shipment, every TSX3721101 undergoes comprehensive functional inspection including power-on self-test, memory test, serial communication verification and backplane bus handshake check. All products come with 12-month warranty. Our automation technical team provides remote support for installation, wiring guidance, PL7 program download and fault diagnosis. Fast global shipping available for urgent maintenance orders.

For automation maintenance engineers and system integrators, TSX3721101 is reliable spare base controller for legacy Schneider TSX Micro PLC systems. It restores logic execution and serial communication functions, extends service life of automation assets and avoids whole control system renovation.


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