GE Fanuc IC697MDL240 Discrete Input Module

Key Technical Specifications

• Module Type: Discrete AC Input
• Input Voltage: 120 VAC Nominal (Operating range: 70–132 VAC)
• Number of Points: 16 (Individually isolated)
• Frequency Range: 47 Hz to 63 Hz
• Filter Delay: 20 milliseconds
• Current Consumption: 0.25 Amps from the 5V Backplane Bus
• Status Monitoring: 16 Green LEDs (One per input)
• Compatibility: Series 90-70 PLC Racks

The GE Fanuc IC697MDL240 is a high-density discrete input module designed for the Series 90-70 Programmable Logic Controller (PLC) environment. This industrial-grade component provides 16 isolated input channels, each rated for a nominal voltage of 120 Volts AC. Because each point is electrically isolated from the others, the module can safely interface with multiple AC power phases simultaneously. This architectural flexibility makes the IC697MDL240 an essential interface for large-scale automation systems requiring robust signal isolation.

Signal Processing and Switch Compatibility

To ensure signal integrity in noisy electrical environments, this module incorporates a fixed 20-millisecond input filter delay. This filtering mechanism effectively suppresses transient noise and contact bounce from field devices. Furthermore, the reactive input characteristics of the IC697MDL240 make it fully compatible with various 2-wire and 3-wire proximity switches. While operating, the module draws approximately 10 mA in the “ON” state, yet it remains resilient against leakage currents up to 4 mA in the “OFF” state. These specific current-voltage parameters allow for reliable sensing across a wide range of industrial sensors.

Software Configuration and Secure Installation

One of the primary advantages of this module is its software-driven setup. Consequently, users do not need to manually adjust physical jumpers or DIP switches. Technicians can configure the module logic through standard Windows-based programming software using either an SNP serial connection or an Ethernet TCP/IP interface. Additionally, the module features a specialized mechanical keying system. This safety feature locks into the backplane’s center rail to ensure that only the correct module type can be inserted into the designated slot, preventing hardware damage during field replacements.