GE Fanuc IC693CMM311N

Product Overview

The GE Fanuc IC693CMM311N is a Communications Coprocessor Module designed for the Series 90-30 programmable logic controller (PLC) system. It is primarily used to enable serial communication between the PLC and other external devices, such as HMIs, computers, remote PLCs, or third-party industrial controllers. Unlike standard communication modules, the IC693CMM311N includes its own microprocessor, which processes communication tasks independently of the main PLC CPU. This architecture significantly reduces the load on the CPU and increases the overall efficiency of the control system.

The module features two independent serial ports: one fixed as RS-232 (Port 1) and the other configurable as either RS-232 or RS-485 (Port 2), providing flexibility for a wide range of serial communication scenarios. The module supports multiple protocols, including GE Fanuc SNP (Series Ninety Protocol), SNPX, and Modbus RTU (master and slave modes).

Key Features

1. Dual Independent Serial Ports

   • Port 1 (RS-232): For point-to-point communication with devices like operator interfaces, laptops, or other serial-based hardware.

   • Port 2 (RS-232/RS-485): User-selectable for multidrop network connections, ideal for connecting to multiple Modbus devices.

2. Offloaded Processing

   • Features a dedicated microprocessor, allowing the module to handle protocol management and data exchange autonomously, without using PLC CPU resources.

3. Multi-Protocol Support

   • Fully supports GE SNP/SNPX protocols for programming and data monitoring.

   • Capable of acting as a Modbus RTU Master or Slave.

   • Versatile enough for use in both peer-to-peer and master-slave configurations.

4. Full Integration with Series 90-30

   • Seamlessly fits into any I/O slot of the Series 90-30 base rack (except CPU-embedded systems like IC693CPU311, 313, or 323).

   • Configurable via GE Fanuc’s Logic Developer or VersaPro programming tools.

5. Industrial-Grade Reliability

   • Designed for continuous operation in demanding environments. Withstands electrical noise, temperature fluctuations, and mechanical vibration.

6. Diagnostic and Status Indicators

   • Equipped with LEDs for module status, port activity, and fault conditions, making on-site troubleshooting simple and efficient.

7. Compact Form Factor

   • Small size allows for dense system configurations without sacrificing communication capability.

Applications

The IC693CMM311N is widely used in industrial environments where reliable and configurable serial communication is essential. Typical application areas include:

• Factory Automation Systems

  • Connecting the PLC to barcode scanners, printers, and legacy serial devices.

  • Establishing data links between multiple PLCs in production lines.

• SCADA Systems

  • Acts as a Modbus interface between the PLC and remote monitoring software or operator stations.

• Process Control

  • Facilitates communication with distributed instrumentation (e.g., temperature controllers, flow meters) via RS-485 networks.

• Building Management

  • Interfaces with HVAC controllers, power meters, and building access systems that operate over serial protocols.

• Energy Sector

  • Used in substation automation, remote terminal unit (RTU) communication, and energy monitoring devices.

• Water and Wastewater

  • Communicates with telemetry units, level sensors, and pump controllers in municipal water infrastructure.

Why Choose the GE Fanuc IC693CMM311N

1. Purpose-Built for Serial Networking

   • Unlike general I/O modules or add-on serial boards, the IC693CMM311N was purpose-built to manage industrial serial communications. It’s reliable, tested, and field-proven in thousands of installations.

2. Performance Without Compromise

   • Its coprocessor architecture means real-time data exchange happens independently from the CPU’s program scan, resulting in faster and more reliable system responses.

3. Flexible Connectivity

   • With dual-port support and protocol options, one module can connect multiple types of equipment on the same PLC system.

4. Legacy Device Compatibility

   • Ideal for environments that require interfacing modern PLC systems with older serial-based devices, extending the life and value of existing hardware investments.

5. Time-Tested Reliability

   • Developed by GE Fanuc, a recognized leader in industrial automation. The IC693CMM311N has been widely adopted and trusted across industries for over two decades.

6. Reduced Engineering Time

   • Well-documented configuration procedures and wide industry use mean faster integration, easier troubleshooting, and less training required for technicians and engineers.

Conclusion

The GE Fanuc IC693CMM311N stands out as a dependable, high-performance communication solution for serial integration within the Series 90-30 PLC ecosystem. Its dedicated coprocessor design, dual-port flexibility, and protocol versatility make it an indispensable component in environments where reliable, real-time communication with external devices is mission critical.

Whether used in modern factories, legacy system upgrades, or mission-critical infrastructure, the IC693CMM311N provides the power and stability required for long-term success in industrial automation.