GE Fanuc IC697 Series Modules: IC697BEM731F Bus Controller Module —

Technical Dossier

Product Details And Specifications

GE Fanuc IC697 Series Technical Notes

The GE Fanuc IC697 Series — commercially known as the Series 90-70 Programmable Logic Controller (PLC) — is one of the most widely deployed rack-based control platforms in global heavy industry. Installed across petrochemical refineries, nuclear power generation facilities, offshore platforms, pulp and paper mills, and large-scale chemical processing plants, the IC697 architecture has maintained a dominant installed base since its introduction in the late 1980s. Its VMEbus-based backplane, high-throughput CPU options, and modular I/O expansion capability made it the preferred DCS/PLC hybrid solution for processes requiring deterministic scan times and high channel density. DriveKNMS maintains an active spare parts inventory for the full IC697 catalog, including discontinued and long-lead-time modules.

IC697 Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly stocked modules within the GE Fanuc IC697 / Series 90-70 platform. Each entry is classified by functional category.

CPU Modules

• IC697CPU731: Series 90-70 CPU, 512KB user memory, ladder logic execution, early-generation processor.
• IC697CPU771: Enhanced CPU, 1MB memory, floating-point math support, VMEbus master.
• IC697CPU781: High-performance CPU, 2MB memory, Ethernet-ready, IEC 61131-3 compatible.
• IC697CPU782: Redundant CPU module, hot-standby configuration support, 2MB memory.
• IC697CPU788: Advanced CPU, C-block and structured text programming, 6MB memory.
• IC697CPU789: Top-tier Series 90-70 CPU, 10MB user memory, multi-tasking OS kernel.

Bus Controller & Communication Modules

• IC697BEM731F: Remote I/O Bus Controller Module — manages communication between the main rack and remote I/O expansion racks over the Series 90-70 Genius Bus; supports up to 32 remote drops; field-replaceable firmware.
• IC697BEM711: Genius Bus Controller, single-bus master, supports up to 31 Genius devices per bus segment.
• IC697CMM711: Serial Communications Module, RS-232/RS-422/RS-485, multi-protocol support (SNP, SNPX, RTU).
• IC697CMM742: Ethernet TCP/IP Communications Module, 10BaseT, SRTP and Modbus TCP protocol support.
• IC697PCM711: Programmable Co-processor Module, offloads communication tasks from main CPU.

Discrete Input / Output Modules

• IC697MDL340: 24VDC Discrete Input Module, 32-channel, sink/source configurable.
• IC697MDL341: 120VAC Discrete Input Module, 16-channel, optically isolated.
• IC697MDL740: 24VDC Discrete Output Module, 32-channel, 0.5A per point.
• IC697MDL741: 120VAC Discrete Output Module, 16-channel, triac output.

Analog I/O Modules

• IC697ALG320: Analog Input Module, 16-channel, 4–20mA / 0–10V, 12-bit resolution.
• IC697ALG321: Analog Input Module, 8-channel, thermocouple/RTD, high-resolution 16-bit ADC.
• IC697ALG440: Analog Output Module, 8-channel, 4–20mA, 12-bit DAC, loop-powered.

Power Supply Modules

• IC697PWR710: 120/240VAC Power Supply, 30W output, standard rack power for 5-slot and 9-slot configurations.
• IC697PWR711: High-capacity Power Supply, 55W, supports fully populated 12-slot racks with high-density I/O.