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IC694BEM331 Wiring

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  • IC694BEM331
  • IC694BEM331 Wiring

Product Description

The GE Fanuc IC694BEM331 Genius Bus Controller interfaces a PACSystems RX3i and a Genius I/O serial bus. In addition to the Bus Controller, the bus will also serve: Genius blocks, remote drops, VersaMax and Field Control I/O Stations, PLCs with Genius Bus, Genius Hand-Held Monitor (HHM), and numerous hosts. Featuring 128 bytes exchange with each device on the Genius I/O bus, the Genius blocks and other devices report faults in an automatic fashion, including alarms and certain other previously defined issues to the bus controller. The bus controller then manages any diagnostic messages it receives, which are then read by the CPU routinely. Faults can then be displayed in the fault table if the programming software is employed.

The IC694BEM331 maintains all Genius datagrams and can send up to 128 bytes of Global Data with each bus review. Global data is data that is spontaneously and mechanically broadcast. Up to eight Genius bus controllers can be incorporated in the system with each transferring up to 128 bytes.

LEDs are found on the front of the controller to specify operating status. With advanced diagnostic capabilities, the daisy chained bus cable uses a single twisted pair plus shield or Twinax. However, fiber optic cable and modems can also be used. The largest length of the bus is 7800 feet at 4Kbaud, 4500 feet at 76.8 Kbaud, 3500 feet at 153.6 Kbaud, and 2000 feet at 153.6 Kbaud standard. The highest number of devices for this unit is 32 at all baud rates except the 38.4 Kbaud or 16 devices at 38.4 Kbaud. The controller is well-suited with multiple series and can trade global data with an RX3i Genius bus controller with firmware version 1.5 or higher. The user should know that no handheld monitor connector is available on the module, but a handheld monitor can interconnect with the controller.

GE Intelligent Platforms / GE Fanuc GE RX3i PacSystem

SKU 2174152  UPC 0799705793453

Part Number: IC694BEM331 / ic694bem331
Mfr/Brand Name: GE Automation
Mfr Number: IC694BEM331 / ic694bem331
Type: Genius Bus Controller

Troubleshooting and Product Information for IC694BEM331

Download product information, troubleshooting guides and operation manuals to get your PLC operational.

New IC694BEM331
Price: $4,256
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Other IC694BEM331

Available Revisions:

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1C694BEM331 , GEFIC694BEM331 , CIMIC694BEM331


Current Consumption

300mA at 5Vdc, maximum


Advanced diagnostics capabilities


Global Data and Datagrams

Data Length

128 bytes per message

Data Rates

Configurable:  153.5kbaud  standard/extended,  76.8kbaud, or 38.4kbaud

Genius Bus Specifications

Bus Type

Daisy-chained bus cable; single twisted-pair plus shield or Twinax. Fiber optical cable and modems can also be used.

Bus Termination

75, 100, 120, or 150  resistor at both ends of electrical bus cable.

Maximum Bus Length

7800 feet at 38.4kbaud, 4500 feet at 76.8kbaud, 3500 feet at 153.6kbaud extended, 2000 feet at 153.6Kbaud standard. Maximum length at each baud rate also depends on cable type, as listed in the Genius System and Communications Manual GEK-90486-1

Maximum Number of Devices

32  devices  at all  baud  rates except 38.4kbaud. 16  devices at 38.4kbaud.


2000 volts Hi-Pot, 1500 volts transient common mode rejection.

Troubleshooting IC694BEM331

Troubleshooting information is available on IC694BEM331's website page; it also includes a datasheet user-manual and a wiring diagram.

Repair your IC694BEM331

PDF Supply can repair your IC694BEM331 in 3-5 business days. And PDF Supply stands by all of its repairs with a 1 year customer satisfaction warranty.

Customer Questions and Answers

  • Question:  What is an IC694BEM331?  Answer:  The IC694BEM331 is a Genius Bus Controller Module from the GE Fanuc RX3i Series.
  • Question:  What does IC694BEM331 do for the RX3i system?   Answer:  This module interfaces a PACSystems RX3i and a Genius I/O serial bus.
  • Question:  What else does the IC694BEM331 serve?  Answer:  In addition to the Bus Controller, the bus can serve:  Genius blocks, other PLCs with Genius Bus Controllers, Remote Drops, VersaMax and Field Control I/O Stations. 
  • Question:  What is the capacity of the IC694BEM331?  Answer:   The bus controller can exchange up to 128 bytes with each device on the Genius I/O bus.
  • Question:  How many IC694BEM331 can be included in an RX3i system?  Answer:  Up to 8 Genius Bus Controllers can be included in an RX3i system.
  • Question:  Where must IC694BEM331 be located?  Answer:  IC694BEM331 can be installed in any available backplane slot.
  • Question:  What should I do if my IC694BEM331 is not working properly?  Answer:  Your IC694BEM331 may need repair.

For more information on the IC694BEM331 Genius Bus Controller Module of the GE Fanuc RX3i Series, please see the Datasheet User-Manual.

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Reconditioned products from PDF Supply are a cost-effective alternative to new and obsoleted PLC products. Every part is reconditioned down to the circuit board level and updated to the latest revision. All parts are thoroughly inspected and hand-cleaned before being functionally tested in a fully configured system.

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