GE Fanuc IC697BEM711 Bus Receiver Module

The GE Fanuc IC697BEM711 is a specialized interface module designed for the expansion of Series 90-70 Programmable Logic Controller systems. This Bus Receiver serves as the critical link between remote expansion racks and the primary CPU chassis. By installing this module into an expansion baseplate, users can integrate additional I/O and smart option modules into the local control network. Furthermore, the unit facilitates a daisy-chain architecture. This allows a single Bus Transmitter to manage multiple expansion racks simultaneously, significantly increasing the system’s total I/O capacity.

High-Speed Data Transmission and Connectivity

Effective data management remains a core strength of the IC697BEM711. Specifically, the module supports a substantial data transfer rate of 500 Kbytes per second. This speed ensures that remote I/O data reaches the CPU with minimal latency. To establish these connections, the module utilizes high-quality expansion cables such as the IC600WD series. Although the system supports complex layouts, the total distance from the transmitter to the final receiver must not exceed 50 feet. Consequently, this module provides a high-performance solution for localized plant expansion where high-speed synchronization is necessary.

Configuration and Network Termination

Setting up the IC697BEM711 is a streamlined process. Technicians can configure the module using standard MS-DOS or Windows-based programming software. Because the module operates within a daisy-chain network, termination is vital for signal integrity. Therefore, the last IC697BEM711 in any expansion string must include an IC697ACC702 terminating resistor. This hardware component prevents signal reflection and ensures reliable communication across all connected racks. In addition, the module occupies only a single slot in the expansion chassis, maximizing the available space for other functional modules.

Integrated Status Monitoring and Protection

For real-time operational oversight, the IC697BEM711 includes a set of three diagnostic LED indicators. These lights provide immediate feedback regarding the power-up sequence, the current status of the expansion bus, and the communication link with the PLC programmer. Moreover, the module adheres to strict industrial standards, including ME standard C.1. This compliance ensures the module can withstand the electrical noise and environmental stressors common in factory floor installations. By providing constant status updates, the unit helps maintenance teams identify and resolve connectivity issues quickly.

Key Technical Specifications

• Module Type: Bus Receiver (Expansion)
• Backplane Current Draw: 1.4 Amps
• Maximum Data Rate: 500 Kbytes/sec
• Expansion Limit: Up to 7 receivers per transmitter
• Maximum Cable Length: 50 feet (Total string length)
• Required Terminator: IC697ACC702 (For last receiver in chain)
• Status Indicators: 3 LEDs (Power, Bus Status, Comm)
• Chassis Compatibility: Series 90-70 Universal and Expansion Racks