GE Fanuc IC687BEM731CA Bus Controller Inquiry Item

Details

This GE Fanuc IC687BEM731CA is a single-channel Genius bus controller with conformal coating treatment, designed for GE Series 90-70 PLC and PACSystem RX7i control systems. It acts as the bridge between the PLC CPU and Genius distributed I/O network, supporting global data GD and datagram communication modes, and can connect up to 32 Genius I/O stations on one bus. The conformal coating protects the circuit board against moisture, dust and corrosive gas, suitable for harsh industrial environments. It occupies one VME slot of the backplane, supports twisted pair or optional fiber bus connection, widely used in petrochemical, power and metallurgy distributed control systems.

Specifications

Model: IC687BEM731CA Brand: GE Fanuc Type: Genius bus controller Applicable rack: Series 90-70, PACSystem RX7i Bus capacity: Max 32 Genius I/O devices Power supply: 5VDC from backplane, 1.3A Coating: Conformal coated Communication: Genius bus, RS485 base Mounting: VME single slot Operating temperature: 0℃ ~ 60℃ Certifications: CE, UL

Components & Troubleshooting

Main communication processing chip, bus transceiver circuit, handshake logic circuit, status LED indicator, VME gold-plated connector, coated PCB board. Common faults: Genius bus offline, I/O station cannot be scanned, communication data loss, module not recognized by CPU, bus conflict alarm.

Disclaimer

This spare part shall be installed and configured by qualified PLC automation technicians. Power off the rack before plugging and unplugging the VME module.