GE Fanuc IC697MDL241 – 120 VAC Discrete Input Module for Series 90-70 Control Systems

The GE Fanuc IC697MDL241 is a discrete input module designed for Series 90-70 racks, typically used to bring 120 VAC field signals into the PLC with stable detection and robust isolation. From my experience, plants choose this module when they need dependable AC input sensing on legacy 90-70 platforms—think motor starters, limit switches, float switches, and panel pushbuttons in utilities, metals, and process environments. You might notice that it plugs straight into an IC697 rack and reports point status to the CPU over the backplane, so there’s no external configuration utility to wrestle with.

Our Order Placement Process and Guarantees

• Warranty: 365 days
• Delivery: 1 week if in stock; no more than one month at the latest
• Payment: 50% advance payment; full payment prior to delivery
• Express options: FedEx, UPS, DHL

Key Features

• Series 90-70 rack compatibility – Installs into standard IC697 racks and communicates via the backplane.
• 120 VAC discrete inputs (50/60 Hz) – Suitable for plant-level AC signals from switches, relays, and contactors.
• Optical isolation per channel/group – Helps protect the backplane and CPU from field noise and transients.
• Status LEDs – Point-status indicators speed up commissioning and troubleshooting on the panel door.
• Noise immunity – Designed for industrial environments with inductive loads and long cable runs.
• Field wiring convenience – Typically uses a front terminal/connector interface for clean, serviceable wiring.

Technical Specifications

Related / Supporting Products

• IC697MDL240 – 120 VAC discrete input module; commonly higher point density than IC697MDL241.
• IC697MDL250 – 120 VAC input variant with different isolation/grouping, used where channel grouping matters.
• IC697MDL340 – 24 VDC discrete input module for DC sensor applications.
• IC697PWR711 – Series 90-70 power supply; choose capacity based on total rack load.
• IC697CHS750 / IC697CHS790 – 90-70 racks (slot count varies) to host I/O and CPU modules.
• IC697CPU772 (or similar) – CPU options for Series 90-70, depending on memory and performance needs.
• Terminal blocks / I/O cabling – Use GE-approved terminal assemblies for neat wiring and strain relief.

Quick field note: a beverage bottling line told us they swapped in IC697MDL241 modules to read 120 VAC float and pressure switch statuses; commissioning went faster than expected thanks to the per-point LEDs and stable on/off thresholds. In many cases, adding RC snubbers across relay coils further reduced nuisance spikes.

Installation & Maintenance

• Cabinet & environment – Mount the IC697 rack in a clean, dry enclosure with adequate ventilation. Maintain 0–60°C ambient and avoid direct exposure to vibration or conductive dust.
• Wiring practices – Separate high-voltage and control wiring; use proper grounding and shield termination. For long AC runs, route away from VFD output cables.
• Power budgeting – Confirm backplane 5 VDC capacity with your chosen power supply; add margin for CPU and other modules.
• Safety – De-energize the panel before inserting/removing modules. Verify absence of voltage on field terminals before servicing.
• Routine checks – Periodically tighten terminal screws, inspect for discoloration or loose conductors, and clean dust with dry air. Firmware updates are CPU-side; the input module itself is typically maintenance-free.
• Spare strategy – Keeping at least one spare IC697MDL241 on hand minimizes downtime, especially in continuous-process sites.

Quality & Certifications

• Typically CE and UL/cUL listed for industrial control equipment.
• RoHS status may vary by build year; legacy Series 90-70 modules are often non-RoHS.
• Manufacturer quality built for long service life in industrial environments.
• Warranty provided: 365 days (our supply terms).