IC697BEM731 GE Fanuc Series 90-70 Bus Controller Module (BCM)

Product parameters

Communication specifications: Supports IC66* remote I/O bus, physical interface is RS-422/485 differential signal, equipped with 15-pin bus port + 9-pin handheld monitoring port.

Transmission performance: Default transmission rate 153.6Kbaud, compatible with 38.4Kbaud/76.8Kbaud adjustable. Maximum bus length: 2275 meters at 38.4Kbaud and 605 meters (2000 feet) at 153.6Kbaud.

I/O capacity: Supports up to 30 remote I/O sub-stations, and 10 to 20 sub-stations when fully loaded. It can handle 1024-point discrete I/O or 64-point analog I/O, and a single substation supports a maximum input of 128 bytes + output of 128 bytes.

Power supply and power consumption: Powered by the Series 90-70 rack backplane bus (DC 5V), the typical backplane current value is 1.3A, and no independent power supply is required.

Operating temperature: 0°C to 60°C, storage temperature: -40°C to +85°C, protection grade: IP20, electrical isolation between the bus side and the backplane.

Function

Remote I/O expansion: As a "data bridge" between the main PLC and the remote I/O rack, it scans the data of the remote discrete/analog I/O module, transmits it to the main CPU, and simultaneously issues master station control instructions to expand the system I/O coverage.

Bus data transmission: Supports Daisy chain topology cabling, with a single cable connecting multiple remote sub-stations, simplifying on-site cabling. It is equipped with built-in parity check and error detection functions to ensure the reliability of data transmission.

Status monitoring and diagnosis: Real-time feedback of the module's working status through LED indicator lights; Supports fault alarm for quick troubleshooting.

System compatibility: Seamlessly compatible with all Series 90-70 cpus and 5/10/15 slot racks, compatible with remote I/O modules of the same series, no additional compatibility configuration required.

Application scenarios

In industrial automation production lines: In industries such as automobiles, building materials, and electronic manufacturing, I/O modules scattered in different areas of the workshop are connected to the main PLC through a bus to achieve centralized control and data acquisition.

Distributed expansion of process control: In large-scale facilities in the chemical, metallurgical, and power industries, it provides remote access for I/O points of decentralized equipment such as reactors, pipelines, and pumping stations, reducing the cost of long-distance cable laying.

Old system I/O expansion: When the existing Series 90-70 systems need to increase I/O points due to capacity upgrade, this module can be used to expand remote racks, reuse the original main CPU resources, and reduce the upgrade cost.

Large-scale equipment zonal control: In machine tools, production line conveying systems, and warehousing and logistics equipment, remote I/O sub-stations are configured according to functional zones, and the master station achieves collaborative control of equipment in each zone through modules.

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