GE IC697MDL650 Series 90-70 125 VDC Input Module
A 16-point 125 VDC positive/negative input module arranged as four isolated groups of four points.
Function, System Position and Selection Boundary
IC697MDL650 accepts 125 VDC field signals in either positive or negative logic and presents 16 discrete input points to the Series 90-70 system. Four isolated groups of four points separate field commons and must be preserved during replacement.
Module LEDs show the PLC-side on/off state. Mechanical keying helps prevent substitution with a dissimilar module, while I/O references are assigned in configuration rather than by module jumpers or DIP switches.
Technical Specifications
Signal structure
Configuration and replacement
Isolated-Group Wiring
Treat each four-point group as its own electrical boundary. Do not merge commons during a terminal transfer simply because the signal voltage is the same.
Group 1
Inputs 1–4 and their common
Group 2
Inputs 5–8 and their common
Groups 3–4
Retain the remaining isolated field returns
Installation and Acceptance Sequence
- Photograph the terminal arrangement and mark each isolated common.
- Export the configured I/O references before module removal.
- Verify mechanical keying and reinstall the terminal assembly without cross-group changes.
- Prove LED state against the PLC input table and the actual field device.
FAQ
How are the inputs grouped on IC697MDL650?
The 16 points are divided into four isolated groups of four points.
Can IC697MDL650 use positive and negative logic?
Yes. The manufacturer describes it as a 125 VDC positive/negative input module.
Where do the status LEDs for IC697MDL650 report state?
They indicate point status on the logic, or PLC, side of the circuit.
Are I/O references set with switches on IC697MDL650?
No. References are user-configurable without module jumpers or DIP switches.
What wiring detail is most important when replacing IC697MDL650?
Keep every point with its original isolated-group common and polarity; verify the configuration before energizing.
PLC and Control Hardware
Moore Automation handles controllers, I/O modules, communication modules, rack hardware and power supplies used across industrial control platforms.
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