Name: Omron CS1W-SCU31-V1 Serial Communication Unit - INOSAKI
SKU: Omron-CS1W-SCU31-V1
Price: 322.06 USD
Availability: InStock

Technical Overview

The Omron CS1W-SCU31-V1 is a highly capable Serial Communication Unit designed for the SYSMAC CS1 series PLCs. It provides dual RS-422A/485 ports and facilitates advanced network integration via Protocol Macro, Host Link, Modbus-RTU, and Modbus-ASCII. Operating efficiently between 0 and 55 °C, it acts as a robust serial gateway for industrial process control, enabling flexible data exchange between PLCs, operator interfaces, and legacy field devices.

Key Features

2 x independent RS-422A / RS-485 serial communication ports
Extensive protocol support including Protocol Macro, Host Link, and 1:N NT Link
Built-in Serial Gateway functionality for CompoWay/F, Modbus-RTU, and Modbus-ASCII
Rated for ambient operating temperatures of 0 to +55 °C
Seamless integration with SYSMAC CS1 Series CPU and Expansion Racks

Technical Specification Matrix

Parameter	Value
Module Type	Serial Communication Unit
Compatible Series	SYSMAC CS1 Series
Communication Ports	2 x RS-422A / RS-485
Current Consumption	0.40 A
Operating Temperature	0 to +55 °C
Weight	0.400 kg
Supported Protocols	Modbus-RTU, Modbus-ASCII, CompoWay/F, Host Link, Protocol Macro

Industrial Applications

1. Long-Distance Modbus Sensor Networking

Deploying the CS1W-SCU31-V1 in large-scale manufacturing environments to aggregate data from distributed Modbus-RTU sensors and actuators over noise-resistant RS-485 cables, routing telemetry directly to the central CS1 PLC.

Problem Solved

Overcomes the distance and electromagnetic noise limitations of standard RS-232 by utilizing differential RS-485 signaling for reliable data acquisition across several hundred meters.

RS-485Modbus-RTUDifferential SignalingSensor Aggregation

2. Multi-device Serial Gateway Integration

Operating as a serial gateway bridging multiple Omron temperature controllers (utilizing CompoWay/F) and legacy serial instruments into a unified modern control architecture via the CS1 backplane.

Problem Solved

Eliminates the need for standalone protocol converters by natively translating CompoWay/F and Host Link protocols directly into the central PLC memory map.

CompoWay/FSerial GatewayProtocol MacroHost Link

3. High-Availability Process Control Communications

Integrating this communication unit into a CS1D Duplex system to provide highly reliable, redundant RS-422A communication links to critical process instrumentation.

Problem Solved

Ensures uninterrupted data continuity and fault-tolerant serial communication in mission-critical process automation pipelines during CPU unit switchovers.

Process ControlRS-422ADuplex PLCHigh Availability