GE WESTERM D20C Controller Module

Technical Specifications Module Type: D20 Series Main Controller Module Bus Interface: D20 rack internal back‑plane bus Communication Interface: Multiple serial communication ports Power Supply: Powered by D20 PS power module via rack back‑plane Mounting Mode: D20 rack plug‑in slot installation Operating Temperature: 0 °C to +60 °C Storage Temperature: ‑40 °C to +85 °C Relative Humidity: 5%‑95%, non‑condensing Mechanical Structure: Standard D20 rack plug‑in module Certifications: CE industrial controller compliance

Functional Features Runs user‑configured control logic program as core controller of D20 system. Realizes data interaction with each I/O module through D20 rack back‑plane bus. Provides communication interface for data exchange with upper monitoring host. Supports fault self‑diagnosis, status report and event data storage function.

Application Scenarios Applied in power substation automation system, industrial process control projects. Cooperates with D20 series I/O modules and D20 PS power supply to complete equipment monitoring, logic control and remote data transmission tasks.

Structural Characteristics Standard plug‑in module housing for D20 rack slot installation.

Working Principle After D20 rack powers on, D20C controller completes hardware self‑check and loads user control logic program. It reads field signal data from I/O modules through rack back‑plane bus, executes logic operation, outputs control commands to I/O modules, and uploads operating data and event information to upper monitoring system via communication port.

Installation Requirements Insert D20C controller module into designated controller slot of D20 rack. Lock module buckle to guarantee reliable contact with rack back‑plane connector. Connect external communication cable to front‑panel port according to wiring requirement. Download user control logic program to controller after whole rack power‑on.

Usage Notes Ensure D20 PS power‑supply module works normally before starting D20C controller. Do not pull‑out or insert controller module when rack is powered‑on. Back‑up user logic program regularly for system maintenance and recovery.