GE IC697PCM711X Series 90-70 Coprocessor Module

Configured for complex auxiliary computations and serial protocol execution in Series 90-70 backplane racks, the GE Fanuc IC697PCM711X (IC697PCM711 Programmable Coprocessor Module) provides direct physical/electrical execution.

Hardware Specifications

Backplane Bus Communication Velocity & Firmware Flash Compatibility

• Backplane Bus Communication Velocity: The module communicates via the 96-pin VMEbus backplane connector, offloading processing tasks from the primary CPU and executing high-speed register data swaps without inducing bus cycle bottlenecks.
• Profinet / EtherNet/IP Deterministic Networks: Functioning as a protocol conversion bridge, the unit processes custom serial frames and routes mapped register values across deterministic industrial network backplanes.
• Firmware Flash Compatibility: Onboard expandable memory daughtercards and runtime firmware versions must match the central PLC CPU revision to ensure error-free task scheduling and handshake signaling.

Frequently Asked Questions

Q: What is the primary function of the IC697PCM711X module within a Series 90-70 rack?

A: The IC697PCM711X operates as an auxiliary programmable coprocessor (PCM) running dual-task routines to handle complex mathematical operations, custom data manipulation, and serial communications independently of the main CPU logic scan.

Q: Can the IC697PCM711X module be replaced while the Series 90-70 rack is under power?

A: No. Hot-swapping is strictly prohibited. Main power to the Series 90-70 base rack must be completely isolated before inserting or extracting the 96-pin backplane connector to avoid damaging sensitive IC components.

Q: How is external communication hardware attached to the PCM module?

A: External devices connect through the front panel 25-pin D-sub serial interface port, which supports dedicated point-to-point serial communication cables.

Field Installation Guidelines

1. Isolate and lock out all power sources feeding the target Series 90-70 PLC rack chassis before beginning installation.
2. Observe strict anti-static precautions by wearing a grounded ESD wrist strap throughout the procedure.
3. Align the circuit board edges of the IC697PCM711X module with the plastic card guides in the target rack slot.
4. Slide the module into the slot until the 96-pin rear connector firmly seats into the backplane socket.
5. Tighten the top and bottom captive panel screws to secure the module frame to the rack chassis.
6. Connect the 25-pin serial communication cable to the front port connector, securing the retention screws to prevent signal interruption from mechanical vibration.
7. Ensure cable shielding is connected to protective earth (PE) ground at a single termination point to minimize electromagnetic noise coupling.
8. Reapply rack power and observe front panel LEDs to verify normal system initialization.