GE IC697CMM742-HJ Ethernet Interfaces

Configured for high-speed network communication in Series 90-70 platforms, the GE Fanuc IC697CMM742-HJ (IC697CMM742 Communications Module) provides direct physical/electrical execution. This single-slot module manages multi-protocol data exchange between host control units, local area networks, and field configuration equipment across industrial automation architectures. It plugs directly into the passive backplane assembly to process deterministic network interface tasks without imposing execution delays on host CPU operations.

Hardware Specifications

Backplane Bus Communication Velocity & Firmware Flash Compatibility

The GE Fanuc IC697CMM742-HJ module utilizes high-speed backplane bus communication velocity to deliver low-latency transmission across Series 90-70 rack assemblies. Integrated firmware flash compatibility supports synchronous execution of network control logic during dense polling cycles. The internal module architecture coordinates signal transfer between serial interfaces, AUI transceivers, and the primary backplane bus while maintaining strict channel isolation and hardware parity verification to preserve data integrity during continuous industrial operation.

Frequently Asked Questions

Q: Can external serial configuration devices remain permanently attached to the RS-485 software load port during normal operation?

A: Yes. The RS-485 software load port operates independently from main Ethernet traffic, allowing continuous connection of diagnostic tools or programming software while the module is online.

Q: Is hot-swapping permitted for the IC697CMM742-HJ module in a Series 90-70 rack assembly?

A: No. Main system power must be disconnected from the Series 90-70 backplane rack before inserting or removing the module to avoid hardware damage or communication fault lockups.

Q: What do the four front-panel LED indicators communicate during module initialization?

A: The LEDs display local operating conditions: MODULE OK verifies internal hardware health, LAN ONLINE confirms physical network layer connection, SERIAL ACTIVE indicates serial port communication, and STATUS indicates execution state.

Field Installation Guidelines

1. Power Verification: Turn off the main circuit breaker supplying the Series 90-70 chassis prior to aligning or seating the IC697CMM742-HJ module.
2. Module Alignment: Align the single-slot module circuit board with the plastic card guides of an open rack slot. Slide the module smoothly toward the backplane.
3. Backplane Insertion: Apply firm, even pressure until the module connectors seat fully into the backplane pins. Secure the top and bottom retaining screws to 0.8 Nm (7 in-lb) torque.
4. Earth Grounding: Verify that the backplane chassis ground conductor (minimum 14 AWG / 2.5 mm sq) is bolted to the central cabinet star ground. The module faceplate must make direct metal contact with the grounded rack frame.
5. Port Wiring: Connect network cables (Ethernet RJ-45, AUI transceiver, or serial RS-232/RS-485) to their respective front-panel connectors. Ensure proper cable strain relief and separation from AC power lines.