4-Channel Discrete Input RS485 I/O Module
This 4-channel discrete input module provides isolation between each channel of inputs, power, and network circuits. It supports the industry-standard RS-485 Modbus RTU protocol for network communication and both AC and DC power sources.



Technical Specifications
Overview
M240 Remote I/O Module
The M240 is a high-performance 4-channel discrete input module designed for reliable signal conditioning in industrial automation. It features robust six-way isolation to eliminate ground loops between power, input, and network circuitry, ensuring signal integrity in harsh environments. Supporting the industry-standard Modbus RTU protocol via RS-485, this hot-swappable module integrates seamlessly into remote I/O data acquisition systems.
Communication & Protocol
- Communication Protocol
- RS485 / Modbus RTU
- Baud Rate
- 11520038400192004800
- Max Nodes
- 64 nodes
Technical Specifications
- Input Channels
- 4
- Input Signal Type
- Discrete
- Response Time
- 10 mS
- Power Supply
- 24VDC ±10% or AC
- Power Consumption
- 1.5 W
Environmental & Safety
Isolation Voltage
- Operating Temperature
- -10 to 70°C
- Relative Humidity
- 5-95% non-condensing
- EMC Standards
- EN1326:1997A1:1998A2:2001A3:2003
Physical Characteristics
Protection Rating
Terminal Specifications
- Removable plug-in type
- Rated 12A/250V
- AWG #26-12 wire support
- Weight
- 128 g



