GE IS420YDIAS1B Discrete contact input module
The GE IS420YDIAS1B is a 24-channel discrete contact input module of the GE Mark VIeS series.
It is compatible with the GE Distributed Control System (DCS) and is used for the signal interface between the I/O Ethernet network and the discrete input terminal board.
It is commonly found in industrial control scenarios such as thermal power and gas turbines. The following are the core information and technical specifications:
Core parameters and characteristics
Project Details
Model IS420YDIAS1B
Manufacturer GE (General Electric)
Belongs to the series Mark VIeS
Module type: Discrete Contact I/O Module
The input channel features 24 discrete contact inputs, each with a status LED
Input isolation: 1500V, input voltage suppression: 125V DC
The signal processing acquisition board provides two-level signal conditioning and level conversion, including filtering and hysteresis functions
Communication interface: Dual RJ-45 Ethernet interface (for system input), 3-pin power input
Operating temperature: -40℃ to 70℃
Dimensions: 8.26cm (height) ×4.19cm (width) ×12.1cm (depth)
The installation method is compatible with the Mark VIeS system rack and the surface mount process
Core function
Signal acquisition: Receives 24 discrete contact signals from switches, sensors and other devices, and is compatible with multiple voltage level inputs.
Interface conversion: Achieve data interaction between I/O Ethernet networks and discrete input terminal boards, supporting a distributed control architecture.
Diagnostic monitoring: Each channel is equipped with an independent status LED, facilitating the rapid location of channel faults and operational status.
Anti-interference design: 1500V input isolation and 125V DC voltage suppression ensure signal stability and equipment safety in harsh industrial environments.
Typical applications
Compatible with the GE Mark VIeS distributed control system, it is used for equipment status monitoring and signal acquisition in industries such as thermal power, gas/steam turbines, petrochemicals, etc., such as the contact signal access of limit switches and status feedback of fans, pumps, and valves.