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The GE IC695CMM002 is a serial communications module for the PACSystems RX3i series of Programmable Logic Controllers (PLCs), now part of Emerson Automation. It is used to enable communication between the PLC and other devices that use serial protocols.
Key Features and Specifications
- Dual-Port Design: The module provides two independent, isolated serial ports. This allows the PLC to communicate with two different devices simultaneously without interference.
- Protocol Flexibility: Both ports are individually configurable to support a variety of serial communication protocols, including:
- RS-232: A standard for short-distance communication, commonly used with older computers and peripherals.
- RS-485: A standard for longer-distance, multi-drop networks, enabling multiple devices to share a single pair of wires.
- Electrical Isolation: A crucial feature of the IC695CMM002 is the isolation of its ports. This protects the PLC and other connected devices from ground loops, electrical noise, and voltage surges that are common in industrial environments.
- Software Configuration: All communication settings, such as baud rate, parity, data bits, and protocol, are configured using the Proficy Machine Edition software.
- Hot Swap Capability: The module supports hot insertion and extraction, which means it can be replaced while the system is powered on, minimizing downtime.
Applications
The IC695CMM002 is a fundamental component for integrating an RX3i PLC into a larger control system. It is used in applications that require:
- Device Integration: Communicating with smart devices like barcode readers, variable frequency drives (VFDs), weigh scales, and human-machine interfaces (HMIs).
- Network Connectivity: Connecting the PLC to a plant-wide SCADA (Supervisory Control and Data Acquisition) or MES (Manufacturing Execution System) network.
- Legacy System Interfacing: Interacting with older equipment that only supports serial communication.
- Point-to-Point Communication: For applications that need dedicated serial communication links between two devices.
