OVERVIEW

Official designation: GE Fanuc IC693BEM331 (Series 90-30, Genius Bus Controller)

Role/Application: A communication module enabling the Series 90-30 PLC to act as a controller on the Genius I/O serial bus, managing up to 31 remote devices.

KEY SPECS SUMMARY

Power: 5 V DC, 700 mA from backplane

Interfaces / Ports: Two 4-pin screw terminal blocks (Bus I/O)

Indicators: Three LEDs (OK, TX, RX)

Operating Temp: 0 degrees C to 60 degrees C

Platform / Compatibility: Series 90-30, 6, 5 PLC systems

Limit: Supports 31 devices, 128 bytes data, 153.6 K baud

Lifecycle: Discontinued

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What are the maximum number of remote devices the IC693BEM331 module can support?

A: The controller module supports a maximum of 31 remote Genius I/O devices on the bus.

Wiring & Installation:

Q: What is the maximum distance for the Genius bus cable when operating at the highest baud rate?

A: The bus length varies by baud rate, but 153.6 K baud is limited to 750 feet (228 meters).

Troubleshooting & Compatibility:

Q: What is indicated when the OK status LED is turned off on the IC693BEM331 module?

A: The off state of the OK LED indicates a fault in the module, such as hardware failure or a backplane issue.

Replacement & Upgrades:

Q: What is the replacement module recommended for the discontinued IC693BEM331 Genius Bus Controller?

A: Refer to the latest manufacturer manual for the recommended replacement Genius Bus Controller options in newer PACSystems.