GE Fanuc IC670MDL640 Field Control 16-Point 24VDC Discrete Input Module

The IC670MDL640 (Model: IC670MDL640) is a high-density discrete input module designed for the GE Fanuc Field Control I/O station. This module features 16 isolated input points that operate at a nominal 24VDC, facilitating the integration of field sensors, switches, and pushbuttons into a distributed control architecture. Engineered for versatility, the IC670MDL640 (Part Number: IC670MDL640) supports both positive and negative logic (Sinking/Sourcing), allowing it to interface seamlessly with a wide variety of industrial field devices.

Built as a plug-in component for the Field Control system, the IC670MDL640 (Model: IC670MDL640) emphasizes system reliability and electrical safety. It provides high-grade galvanic isolation of 1500 VAC between user inputs and the internal logic to prevent field-side transients from damaging the communication backplane or the Bus Interface Unit (BIU). Although currently discontinued by the manufacturer, it remains a vital replacement part for maintaining legacy Field Control installations in manufacturing and utility sectors.

Field Signal Logic and System Integration

The IC670MDL640 (Model: IC670MDL640) is designed to minimize electrical noise interference through its filtered input circuitry. Each of the 16 channels includes an RC filter that sets a typical response time of 6 ms, ensuring that contact bounce from mechanical switches does not trigger false logic states within the PLC. This timing is optimized for general-purpose sensing where high-speed pulse counting is not required but signal stability is paramount.

Detailed Technical Specifications

The IC670MDL640 (Part Number: IC670MDL640) provides precise signal acquisition with a robust electrical design.