GE IC697BEM731 Series 90-70 Genius I/O Bus Controller Module

Product Overview

The GE Fanuc IC697BEM731 serves as the primary communications interface between a Series 90-70 PLC CPU and a Genius I/O distributed network. This single-slot module manages all data exchange across the bus, providing a robust link for up to 30 remote devices. It eliminates the need for complex localized wiring by centralizing control over long-distance fieldbus architectures. We offer this module in 100% Brand New condition, providing a factory-fresh solution for maintaining or expanding legacy IC66 PLC systems.

Technical Specifications

Engineering Advantages

• Long-Distance Network Integrity: The IC697BEM731 maintains signal timing over distances up to 7,500 feet. This capability allows engineers to place I/O blocks near the actual field machinery while keeping the PLC logic in a centralized, protected control room.

• Simplified Troubleshooting: The dedicated Hand-Held Terminal (HHT) port provides direct access to the bus diagnostics. Maintenance personnel can monitor bus health, force outputs, and verify device configurations without requiring a PC or stopping the PLC CPU.

• Flexible Data Rates: By supporting multiple baud rates (38.4K to 153.5K), the module adapts to various environmental conditions. Lower baud rates allow for significantly longer cable runs and higher noise immunity in electrically "dirty" environments.

• Deterministic Communication: The Genius protocol ensures predictable data delivery. The IC697BEM731 manages the token-passing sequence efficiently, ensuring that critical sensor data reaches the Series 90-70 CPU within defined millisecond windows.

FAQs

• Can I hot-swap the IC697BEM731 module?

  No. Always power down the Series 90-70 rack before installing or removing the Bus Controller. Failure to do so may damage the backplane or cause unpredictable bus behavior for the remaining 30 devices.

• How do I handle bus termination for the IC697BEM731?

  You must install a termination resistor at both ends of the electrical bus. Depending on the cable type and length, use either a 75-ohm or 150-ohm resistor. The IC697BEM731 usually resides at one end of the bus, requiring a resistor across its Serial 1 and Serial 2 terminals.

• What do the three LED indicators signify?

  The LEDs monitor "Module OK," "Bus Active," and "I/O Enabled" statuses. A blinking LED typically indicates a configuration mismatch or a physical break in the Genius bus cable.

• Is this a refurbished or used pull?

  Absolutely not. We supply this IC697BEM731 as a 100% Brand New unit in original packaging. This ensures the internal electrolytic capacitors and the HHT port connector have zero wear, maximizing the MTBF (Mean Time Between Failures) for your system.