Description

Configured for distributed I/O management in Series 90-70 PLC networks, the GE IC697BEM733 (IC697BEM733 Remote I/O Scanner) provides direct physical and electrical execution for remote station communication over distances reaching 2,275 meters.

Hardware Specifications

Backplane Bus and Network Communication

The scanner module interfaces with the Series 90-70 backplane bus to facilitate high-speed data transfer between the CPU and distributed remote I/O drops. The module controls backplane bus communication velocity to maintain synchronization across the network. System firmware flash compatibility allows the scanner to integrate with various rack configurations while managing I/O density scaling. The scanner maps discrete and analog data points into the host processor memory, ensuring the CPU maintains current status updates for all remote field devices within the deterministic scan cycle.

Frequently Asked Questions

Q: Can the IC697BEM733 be removed or inserted while the rack power is active?

A: No, the module does not support hot-swapping. Operators must disconnect rack power before installing or removing the scanner to prevent electrical damage to the backplane pins and internal logic circuits.

Q: Does the module require specific firmware to support remote I/O redundancy?

A: Redundancy configurations depend on the specific bus terminal setup and the version of the host PLC firmware. Verify the hardware and firmware revision levels match the requirements for the intended redundant bus architecture.

Field Installation Guidelines

• Prior to any physical handling, ensure the rack power supply is completely de-energized to prevent short-circuiting the backplane bus interface pins.
• During the installation process, verify that the module is properly seated in the designated rack slot and that the backplane connector is fully engaged to ensure stable signal transmission.
• When establishing network links, connect the communication cables to the 15-pin RS-422/485 port, ensuring the use of shielded, twisted-pair cabling to maintain signal integrity over the 2,275-meter maximum distance.
• During the wiring phase, ground the cable shields appropriately at the designated ground terminals to prevent electromagnetic interference or ground loops that could disrupt network communication.
• Upon completion, utilize the module’s three onboard LED status indicators to monitor network health and operational status during the commissioning phase.