IC693CMM311 Communication Coprocessor Module for Series 90-30

Introduction to the IC693CMM311 Communication Coprocessor Module

In modern industrial automation, reliable communication between controllers and field devices is essential for efficient operations. The IC693CMM311 communication coprocessor module, part of the Series 90-30 PLC platform formerly manufactured by GE Fanuc and now under Emerson Automation, addresses this need with versatile connectivity options. This module provides CCM, RTU, and SNP protocol support, enabling seamless data exchange in diverse manufacturing environments.

AutoDCSTech offers the IC693CMM311 as a key component for upgrading or maintaining Series 90-30 systems. With two serial ports and configurable electrical standards, it integrates easily into existing networks. Its design focuses on flexibility and reliability, making it a practical choice for engineers seeking to enhance communication capabilities without replacing entire control systems.

Technical Specifications and Performance

The IC693CMM311 operates with a backplane current draw of 400 mA at 5 VDC, ensuring efficient power usage within the CPU baseplate. It features two 25-pin D-shell female ports: Port 1 supports RS232, while Port 2 supports RS232, RS422, and RS485 standards. This dual-port configuration allows connection to a wide range of serial devices, from legacy equipment to modern sensors.

Communication speeds range from 300 to 19200 baud, covering common industrial rates. The module supports CCM, RTU, and SNP protocols, with configurable combinations for both ports. Status LED indicators for Module OK, PORT1, and PORT2 provide quick visual feedback on operational state. The module occupies a single slot in any slot except the CPU slot, and up to four modules can be installed per baseplate.

Applications in Modern Manufacturing

The IC693CMM311 excels in scenarios requiring robust serial communication. In a typical material handling system, it connects PLCs to remote I/O racks using RS485 for long-distance transmission. Its support for RTU protocol makes it suitable for Modbus-based networks, common in process control applications.

Another common use is in packaging lines where SNP protocol enables programming and monitoring from a central workstation. The module's ability to handle multiple protocol combinations allows engineers to tailor communication to specific machine requirements. For example, CCM on Port 1 and RTU on Port 2 can link a local HMI to a remote sensor network.

Compatibility and Integration

The IC693CMM311 is compatible with modular GE Series 90-30 CPUs, but not with embedded CPUs like the 311, 313, or 323. It mounts on the CPU baseplate and requires the IC693CBL305 Wye cable for easy port separation. This pre-assembled cable simplifies wiring, reducing installation time and potential errors.

Supported protocols include CCM, RTU, and SNP, with SNP-X also available for advanced applications. The module can be configured via default settings or software, offering flexibility for different system architectures. Up to four modules can be used per baseplate, providing ample communication channels for complex automation setups.

Comparison with Similar Communication Modules

Compared to other Series 90-30 communication modules, the IC693CMM311 stands out for its dual-port design and multi-protocol support. While some modules focus on a single protocol, this coprocessor handles CCM, RTU, and SNP, reducing the need for multiple modules. Its RS232/RS422/RS485 compatibility on Port 2 offers greater wiring flexibility than modules with only RS232.

For applications requiring only basic serial communication, a simpler module might suffice. However, the IC693CMM311 provides future-proofing for evolving network requirements. Its 400 mA current draw is moderate, ensuring it does not overload the backplane power supply. Engineers should verify compatibility with their specific CPU model before installation.

Frequently Asked Questions About the IC693CMM311

What protocols does the IC693CMM311 support?

The IC693CMM311 supports CCM, RTU, and SNP protocols. It also supports SNP-X for advanced applications. These protocols can be configured in various combinations across Port 1 and Port 2, allowing flexible communication setups.

Can the IC693CMM311 be used with embedded CPUs?

No, the IC693CMM311 is not compatible with embedded CPUs such as the 311, 313, or 323. It is designed for use with modular Series 90-30 CPUs only. Always verify CPU compatibility before installation.

What cable is recommended for the IC693CMM311?

The recommended pre-assembled cable is the IC693CBL305 Wye cable. This cable separates the two ports, simplifying wiring. It is specifically designed for the IC693CMM311 module.

Why Choose AutoDCSTech for Your IC693CMM311 Needs

AutoDCSTech specializes in industrial automation spare parts, offering genuine components like the IC693CMM311. Our team understands the importance of reliable communication in your operations. We provide fast shipping and expert support to help you maintain system uptime.

Please verify current lifecycle status and availability with AutoDCSTech before ordering, as this product is discontinued/obsolete. We can help identify suitable alternatives or confirm stock availability for your project.