GE Fanuc IC610MDL125B Series One Discrete Input Module

The IC610MDL125B is an 8-circuit discrete input module engineered for the GE Fanuc Series One programmable logic controller system. This component converts high-voltage 115 VAC field signals into logic-level data for processing, enabling reliable monitoring of switches, sensors, and contactors in legacy control installations.

Input Architecture and Grouping

The module contains eight input circuits arranged in two isolated, individually powered groups of four channels. Operating within an AC voltage range of 97 to 132 V AC at 47 to 63 Hz, this dual-group design allows independent circuit powering and minimizes potential noise coupling across channels.

Signal Thresholds and Performance

Electrical logic detection is specified with an ON level threshold above 80 V AC and an OFF level below 20 V AC, supported by a nominal input impedance of 9.5 kOhms. Input signal propagation features response times of 10 to 30 ms during OFF-to-ON transitions and 10 to 60 ms during ON-to-OFF transitions.

System Integration and Diagnostics

Designed for direct installation, the module operates across Series One, Series One Plus, and Series One Junior PLC racks. It draws an internal power allocation of 10 mA at 9 VDC from the backplane and provides eight frontal LEDs to give maintenance personnel clear visual status indications for each channel.

Frequently Asked Questions

Q: Which PLC systems accept the IC610MDL125B input module? A: This module is fully compatible with GE Fanuc Series One, Series One Plus, and Series One Junior controller architectures.

Q: How are the AC input channels isolated from each other? A: The eight channels are split into two separately powered groups of four inputs, offering electrical isolation between the two four-channel banks.