GE IC687BEM731-AB｜Genius Bus Controller｜

Core technical specifications
Bus communication
Module role: Dual independent Genius Bus master station in PLC rack, with CH1 and CH2 channels isolated from each other and two independent networks
Bus baud rate: Genius fixed 153.6 kbps, non modifiable
Single channel maximum nodes: 32 Genius slaves; The maximum number of nodes for the entire machine is 64
Transmission medium: Genius shielded twisted pair cable
Communication distance:
No repeater: maximum 2000 meters per channel
Paired with IC670ACC001 repeater, up to 8 relays per channel, with a maximum of 6400 meters
I/O data capacity: maximum 4096DI/4096DO for the whole machine; Analog AI 512 channel, AO 512 channel
Support Genius Global Data global data, allowing nodes to exchange data directly without going through the CPU
Channel fault isolation: One bus fault does not affect the normal operation of the other channel
Hardware electrical parameters
Compatible rack: GE Series 90-70, 5-slot/10 slot mainframe rack, expansion rack, regular I/O slot
Power supply: 90-70 rack backplane 5VDC power supply, no external power supply terminal
Backplane power consumption: 5VDC, maximum 1.3A
Physical interface: 2 DB-9 female ports, corresponding to CH1 and CH2 Genius buses respectively; Parameters of onboard DIP dip switch configuration module
LED indicator light:
PWR: Module Power Supply
RUN: Module running status
OK: Module self-test is normal
BUS1 Fault: Channel 1 bus fault
BUS2 Fault: Channel 2 bus fault
Firmware: IC687BEM731-AB factory pre installed firmware V4.40, EPROM storage; It can be backward compatible with old networks and interchangeable with V4.30 firmware modules, but the old CPU needs to confirm that the CPU firmware version matches.
Diagnostic function
CH1 and CH2 channel independent fault detection: bus short circuit, disconnection, loss of slave station, module abnormality, reported to PLC system status register separately
Fault node bypass: The fault is isolated from the station, and other nodes in the same channel continue to operate without shutting down the entire network
Support HHP handheld programmer to diagnose and view node status of two Genius networks separately
The PLC user program can read the channel and the online/offline status words of each slave node, which are used for program alarm logic
Environmental Machinery
Installation: 90-70 rack slot, for use inside the control cabinet, with IP20 protection
Working temperature: 0 ℃~+60 ℃
Storage temperature: -40 ℃~+85 ℃
Humidity: 5-95% RH, no condensation
Certification: UL, CE, CSA