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SKU: IC693BEM321

GE Fanuc IC693BEM321 Series 90-30 I/O Link Master Module

The GE Fanuc IC693BEM321 is a Series 90-30 I/O Link Master Module designed to control up to 16 slave devices. It supports 1024 I/O points and utilizes RS-422/RS-485 protocols for high-speed, reliable remote communication in complex automation environments.

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Product Overview

The IC693BEM321 functions as a high-performance Serial I/O Link Master Module within the GE Fanuc Series 90-30 PLC family. This module serves as a critical communications bridge, enabling a Series 90-30 CPU to control and monitor up to 16 remote slave devices. By acting as a centralized manager, the master module facilitates efficient data exchange across distributed industrial networks. Consequently, it is an ideal choice for complex automation architectures that require localized control over a wide physical area.

Functional Capabilities

  • Extensive Data Management: The module is capable of processing up to 1024 (1K) digital inputs and 1024 (1K) digital outputs. As a result, it can handle high-density field data from multiple actuators and sensors simultaneously.
  • Scalable Architecture: Because the Series 90-30 baseplate supports up to six IC693BEM321 modules at once, engineers can design systems with multiple independent I/O links. This allows for the isolation of different production sectors to improve system fault tolerance.
  • Robust Communication: It utilizes industry-standard RS-422 and RS-485 serial protocols. Therefore, the system maintains signal integrity over long distances between the master PLC and the remote slave modules.
  • Integrated Diagnostics: The front panel features three dedicated LED indicators. These provide real-time status updates regarding the module’s operational health and communication activity, which simplifies troubleshooting.

Technical Specifications

  • Manufacturer: GE Fanuc (Emerson Automation)
  • Product Series: Series 90-30
  • Module Type: I/O Link Master (BEM)
  • Slave Capacity: Connects up to 16 Slave Modules
  • I/O Capacity: 1024 Inputs / 1024 Outputs
  • Internal Power Consumption: 5V DC from the PLC backplane
  • Interface Connector: 20-pin Honda socket
  • Physical Dimensions: 3.6 cm x 13 cm x 13.5 cm
  • Weight: 0.2 kg

Operational Applications

In practical industrial settings, the IC693BEM321 is frequently utilized to extend the reach of a central PLC to remote I/O racks or specialized machinery. Since the module includes a front-mounted reset button, operators can manually cycle power to the link or clear system faults without restarting the entire PLC. Moreover, the configuration process is highly flexible; users can program the module using either a handheld GE Fanuc programmer or standard PC-based software.

In addition to its primary role in the Series 90-30 line, it maintains compatibility with Series 90-70 components, thereby offering a versatile migration path for aging control systems. Furthermore, its reliable serial interface reduces the need for extensive point-to-point wiring. Consequently, this architecture significantly lowers both initial installation labor and long-term maintenance costs.

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ParameterSpecification
ModelIC697CGR935
BrandGE
OriginUSA
Weight0.75 kg
Dimensions4.0 cm x 21.8 cm x 29.1 cm
Operating Temp0 deg C to 60 deg C
Power Consumption3.1 A
Processor96 MHz 80486DX4
Memory1 MB
Execution Speed0.4 microseconds (Boolean)

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  • Ensure the rack slot is free of debris before inserting the module to guarantee proper contact with the backplane connector.
  • The module must be seated flush against the rack frame and secured using the provided mounting hardware to ensure electromagnetic compatibility and grounding.
  • Shielded serial cables connected to the RS232 or RS485 interfaces should be grounded at the controller end to mitigate noise interference in high-EMI environments.
  • Upon initial power-up, verify that the 3-position switch is set to the correct mode (Run/Stop) and that status LEDs indicate valid processor health before establishing field I/O connectivity.
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