3704E Analog Input Module Triconex

Description

The 3704E Analog Input Module Triconex is a high-reliability component in the TMR (Triple Modular Redundancy) series, designed for safety instrumented systems and industrial automation applications to ensure secure, continuous signal processing. As a high-density, DC-coupled module with +6% overrange capability, it converts field analog signals for system processing, supporting optional hot standby modules for fault-tolerant operation. Key technical specifications include 64 input points, with selectable input voltage ranges of 0-5V or 0-10V. It delivers a 12-bit resolution, an input update rate of 75 milliseconds, and maintains accuracy of less than 0.25% of full-scale range (FSR) between 0 degrees Celsius and 60 degrees Celsius. The module features typical DC off-resistance of 30kΩ, 200kΩ branch-to-branch isolation, and continuous overvoltage protection up to 150VDC/115VAC. Operating across a wide temperature range of -40 degrees Celsius to +85 degrees Celsius, it has an IP65 protection rating for harsh industrial environments. Measuring 3U high (170mm x 105mm x 32mm) and weighing approximately 2.5 kg, it supports multiple communication protocols including Modbus, Ethernet/IP, DeviceNet, and ControlNet, with connection options of RS-232, RS-422, RS-485, and RJ-45.