GE IC697CHS791G PLC Chassis Racks

The General Electric IC697CH5791G, also cataloged as the IC697CH5791 9-Slot Front Mount Rack, operates as a dedicated hardware component for structural module housing and backplane power distribution within Series 90-70 PLC architectures. Configured for system expansion and physical module mounting in Series 90-70 PLC platforms, the module provides direct physical/electrical execution. It provides passive multilayer PCB routing to interconnect central processors, power supplies, and option cards across a 32-bit VME bus architecture.

Hardware Specifications

Backplane Bus Communication Velocity & Firmware Flash Compatibility

The General Electric IC697CH5791G rack incorporates a passive multilayer PCB backplane designed to maintain high backplane bus communication velocity across all 9 slots. Its 32-bit VME bus architecture supports synchronous execution of logic sweeps and real-time data transfers between host CPUs and option cards. The physical bus traces provide deterministic timing and signal integrity without firmware latency, maintaining firmware flash compatibility across installed CPU models IC697CPU731 through IC697CPU782. Inter-rack communication is established via a dedicated 90-pin expansion connector to scale overall system I/O capacity.

Frequently Asked Questions

Q: Can any Series 90-70 system module be installed in Slot 1 of the IC697CH5791G rack?

A: No. Slot 1 is keyed and designated exclusively for the primary rack power supply module to deliver backplane power to the chassis.

Q: What is the maximum total current limit allowed on the +5 VDC backplane bus line?

A: The total current draw across all installed modules on the 5 VDC backplane rail must not exceed 10 A, with an individual slot limit of 2 A maximum.

Q: Which central processing unit modules are compatible with this rack assembly?

A: The IC697CH5791G chassis supports GE Fanuc Series 90-70 CPU models ranging from IC697CPU731 through IC697CPU782.

Field Installation Guidelines

1. Chassis Mounting: Secure the rack structure into a standard enclosure panel or 19-inch equipment rack using the four M6 threaded holes or the two included 19-inch mounting flanges. Ensure vertical orientation to allow natural convection cooling.
2. Earth Ground Connection: Connect a dedicated grounding wire from cabinet star ground to the M4 chassis grounding stud on the rack frame to ensure ESD protection and noise immunity.
3. Power Supply Installation: Install the primary system power supply into Slot 1 before inserting any CPU or peripheral I/O cards. Verify physical engagement with the 48-pin DIN 41612 backplane connector.
4. Module Seating: Slide option modules into Slots 2 through 9 along the plastic guide channels. Press firmly until the module backplane connector seats into the DIN 41612 receptacle, and lock faceplate latches securely.
5. Bus Expansion Wiring: Connect the 90-pin rack-to-rack expansion cable to the designated expansion port when linking multi-rack configurations.