General Electric IC693CMM301 Communications Module

The GE IC693CMM301 is a versatile Serial Communications Module designed for use with the GE Fanuc Series 90-30 PLC system. This module provides an asynchronous RS-232 serial port that supports both Modbus RTU slave and serial communication protocols, making it ideal for interfacing the PLC with external devices such as HMIs, barcode readers, modems, printers, and other third-party serial devices.

With the CMM301 installed, users can implement point-to-point serial data exchange and take advantage of Modbus communication for integration with SCADA systems or legacy industrial equipment. The module supports a wide range of baud rates and character formats, providing reliable and configurable serial communication in demanding industrial environments.

Backed by GE’s reputation for reliability and performance, the IC693CMM301 is a field-proven solution for industrial networking and device integration challenges in factory automation, utilities, and process industries.

Product Specifications

Product Applications

The GE IC693CMM301 is commonly used in industrial applications where PLCs need to communicate with serial devices. Key application scenarios include:

• SCADA System Integration: Enables Series 90-30 PLCs to act as Modbus slaves for SCADA and remote monitoring.

• Third-Party Device Communication: Interfaces with printers, bar code scanners, HMIs, and serial sensors.

• Remote Device Monitoring: Connects to modems for dial-in or dial-out communication in utility control systems.

• Legacy System Support: Acts as a bridge between modern control systems and older serial-based equipment.

• Data Logging & Messaging: Enables transmission of formatted data to logs or display systems.

• Factory Automation Networks: Used in discrete manufacturing lines where reliable serial communication is needed.

Product Advantages

• Multi-Protocol Support: Provides Modbus RTU and standard serial ASCII communications.

• High Compatibility: Fully compatible with Series 90-30 baseplates, CPUs, and I/O modules.

• Flexible Baud Rates: Supports a range of communication speeds suitable for legacy and modern devices.

• Simple Integration: Uses a standard DB-25 RS-232 port for quick connection.

• Reliable Communication: Proven performance in industrial environments with high electrical noise.

• Indicator LEDs: Built-in LEDs provide status indication for transmit, receive, and module health.

• Field Proven: Trusted by OEMs and system integrators worldwide for robust device communication.

Frequently Asked Questions (FAQ)

1. What type of serial communication does the IC693CMM301 support?

   It supports RS-232 communication and can be configured for either Modbus RTU slave or serial ASCII protocols.

2. Can this module be used to communicate with SCADA systems?

   Yes, especially when used in Modbus RTU slave mode to provide data to SCADA or remote monitoring systems.

3. Does this module support RS-485 or RS-422?

   No, it is limited to RS-232 communication. Other modules or converters are needed for RS-485/422.

4. Which devices can I connect to using this module?

   Devices such as HMIs, printers, bar code readers, modems, and other serial equipment.

5. Is configuration done via software or DIP switches?

   Configuration is typically handled through the PLC programming software.

6. Can multiple CMM301 modules be used in the same PLC rack?

   Yes, multiple CMM301 modules can be used, each occupying a separate slot.

7. What is the connector type on the module?

   It has a DB-25 female connector configured as a DTE.

8. Can it act as a Modbus master?

   No, the IC693CMM301 supports only Modbus RTU slave functionality.

9. Does it support full duplex communication?

   Yes, full duplex RS-232 communication is supported.

10. How do I monitor the status of communication?

    Use the built-in LEDs for TX/RX and module health or diagnostic tools in the software.