Overview

The GE WESDAC D20ME is part of the D20 substation automation family, designed to handle analog and digital input/output signals for monitoring and control in power utilities and industrial automation. This module integrates analog inputs, analog outputs, digital inputs, and control outputs into a single unit, reducing panel space and simplifying system design.

It is widely used in substation automation, SCADA integration, and process control, where reliable signal acquisition and control are critical.

Technical Data

Key Features

• Combines analog and digital I/O in a single module.

• Hot‑swappable design allows maintenance without disturbing wiring.

• High‑precision analog measurement (up to 20-bit resolution, accuracy better than 0.04%).

• Flexible configuration supporting multiple analog/digital channel options.

• Industrial-grade reliability with wide temperature tolerance.

• Supports SCADA protocols for seamless integration into utility networks.

Application

Typical applications include:

• Utility substations for feeder and bay monitoring.

• SCADA systems requiring analog/digital signal acquisition.

• Industrial automation in chemical, steel, and mining plants.

• Process control with high-precision analog measurement.

• Retrofit projects upgrading legacy GE D20 systems.

FAQ

Q1: What is the role of the D20ME module?
It provides analog and digital I/O capability for GE’s D20 substation controllers.

Q2: How many channels does it support?
Up to 16 digital inputs, 8 control outputs, and optional 8–16 analog inputs/outputs.

Q3: Is it hot‑swappable?
Yes, the WESDAC design allows maintenance without disturbing wiring connections.

Q4: Which industries use this module?
Primarily power utilities and industrial automation sectors requiring reliable SCADA integration