Triconex 3201 (CM3201) | Communication Module (Chinese & English Version)

The 3201 (CM3201) is a high-reliability communication module for the Schneider Triconex Trident SIS system. It enables data interaction between the system and DCS, HMI, host computers and third-party devices, and supports redundant networking to ensure uninterrupted data links of safety systems.

## 1. Overview

Model: CM3201 (3201)

Brand: Schneider Electric (Formerly Triconex)

Type: Communication Module

Applicable System: Trident Safety Instrumented System (SIS)

Positioning: External communication gateway of the system with redundant configuration support

## 2. Interfaces

Ethernet: 2 × Ethernet Ports (NET1/NET2), supporting Modbus TCP/IP

Serial Port: 3 × Configurable RS-232/RS-485 (SERIAL), supporting Modbus RTU

Protocols: Modbus TCP/RTU, DNP3, customized serial protocols, etc.

Electrical Isolation: Electrical isolation between serial/Ethernet ports and the system side

Power Supply: 24VDC (19.2～30VDC) with redundant power supply design

## 3. Specifications

Processor: 32-bit high-performance processor

Architecture: TMR triple redundant communication link supported

Redundancy: Dual-module redundancy; communication remains uninterrupted with single module failure

Diagnostics: Real-time reporting of port status, link faults and data check errors

Ambient Temperature: -40℃ ～ +70℃

Maintenance: Hot-swappable; online replacement without affecting system operation

Safety Level: Compliant with SIL3 system applications

## 4. Key Features

Multi-protocol Interconnection: Simultaneously supports Ethernet and serial ports to connect with DCS, HMI, PLC, SCADA and other equipment.

Redundant Communication: Dual Ethernet ports / dual-module redundancy, automatic switching upon link faults with zero data loss.

Real-time Data Exchange: Upload system status, interlock signals and SOE events; download instructions and parameters.

Remote Diagnosis & Maintenance: Remote viewing of module status and communication faults for convenient operation and maintenance.

Seamless Trident Integration: Compatible with modules such as 3101 (CPU), DI3301, DO3401, AI3351 and AO3321.

## 5. Applications

Petrochemical Industry: Bidirectional communication between ESD system and DCS, data upload of F&G fire and gas system

Power Industry: Data interaction between boiler/turbine protection systems and host computers & HMI

Oil & Gas Transmission: Remote monitoring and data transmission of long-distance pipeline interlock systems

Others: External communication scenarios of safety systems in metallurgy, rail transit, pharmaceutical and other industries