Description
IC693CMM311: Product Overview
The GE IC693CMM311 is a communication coprocessor module designed specifically for GE Fanuc Series 90-30 PLC systems, a legacy platform renowned for its reliability in industrial automation. As part of the Series 90-30 ecosystem, it addresses the need for flexible, high-reliability communication in distributed control architectures—where PLCs must exchange data with field devices (e.g., sensors, actuators), HMIs, and SCADA systems.
Role in Automation Systems:
Positioned as a “communication gateway” in Series 90-30 architectures, the IC693CMM311 performs three primary functions:
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Protocol Conversion: Translates data between the PLC’s internal format and industry-standard protocols (Modbus RTU, SNP), enabling seamless integration with third-party devices.
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Data Exchange: Facilitates bidirectional communication between the PLC and external systems (e.g., sending sensor data to a SCADA server, receiving control commands from an HMI).
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CPU Offloading: Handles communication tasks independently, freeing the PLC’s CPU to focus on critical control logic (e.g., turbine speed control, valve positioning).
Core Functionality:
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Dual Serial Ports: Port 1 is fixed to RS-232 (for point-to-point communication, e.g., connecting to a PC for programming), while Port 2 supports RS-232 or RS-485 (for multi-drop networks, e.g., connecting to multiple Modbus RTU devices).
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Multi-Protocol Support: Compatible with Modbus RTU (slave mode), SNP (GE’s proprietary serial protocol), and CCM (custom communication protocol for Series 90-30 systems). This flexibility allows engineers to tailor communication to specific applications.
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Software Configuration: Protocols, baud rates, and port parameters are configurable via GE Fanuc’s Logicmaster 90-30 or Proficy Machine Edition software. The module appears as a configurable device in the hardware tree, simplifying setup.
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Diagnostic LEDs: Status indicators (Module OK, PORT1, PORT2) provide real-time feedback on communication health, enabling quick troubleshooting (e.g., identifying a disconnected cable or misconfigured protocol).
Platform Benefits (Series 90-30):
The IC693CMM311 inherits the Series 90-30 platform’s strengths, including:
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Reliability: The Series 90-30 system is the industry standard for industrial automation, with a proven track record of 24/7 operation in power plants, refineries, and manufacturing facilities worldwide.
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Legacy Compatibility: The module works with existing Series 90-30 components (e.g., I/O racks, CPUs), reducing the cost of system upgrades.
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Scalability: Supports up to 4 communication coprocessor modules per CPU baseplate, allowing expansion for large-scale systems (e.g., multi-turbine power plants).
GE IC693CMM311
Technical Specifications
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Parameter
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Specification
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Model Number
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IC693CMM311
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Product Series
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GE Fanuc Series 90-30
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Module Type
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Communication Coprocessor Module
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Supported Protocols
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Modbus RTU (slave), SNP, CCM
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Communication Ports
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2 serial ports (Port 1: RS-232; Port 2: RS-232/RS-485 configurable)
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Baud Rate
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300–19,200 bps (configurable)
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Power Consumption
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400 mA @ 5 VDC (from backplane)
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Compatibility
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Modular Series 90-30 CPUs (e.g., IC693CPU331); not compatible with embedded CPUs
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Operating Temperature
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0°C to +60°C (32°F to 140°F)
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Storage Temperature
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-40°C to +85°C (-40°F to 185°F)
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Relative Humidity
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5–95% non-condensing
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Mounting
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Series 90-30 CPU baseplate (occupies 1 slot)
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Weight
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~0.55 kg (1.2 lbs)
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Certifications
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CE, UL (inferred from GE industrial product standards)
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Core Features & Customer Value
1. Flexible Communication:
The IC693CMM311’s dual serial ports and multi-protocol support enable engineers to connect the Series 90-30 PLC to a wide range of devices—from legacy sensors (using Modbus RTU) to modern HMIs (using SNP). This flexibility reduces the need for additional protocol converters, saving time and money during installation.
2. Reliable Data Exchange:
By handling communication tasks independently, the IC693CMM311 ensures that critical control logic (e.g., turbine speed adjustment) is not interrupted by communication delays. This reliability is essential for mission-critical applications like power generation, where downtime can result in significant losses.
3. Easy Troubleshooting:
The module’s diagnostic LEDs (Module OK, PORT1, PORT2) provide instant visual feedback on communication status. For example, if the PORT2 LED is off, technicians can quickly identify that the RS-485 network is disconnected, reducing troubleshooting time from hours to minutes.
4. Scalable Architecture:
Support for up to 4 communication coprocessor modules per CPU baseplate allows facilities to expand their communication capacity as needed. For instance, a power plant can add more modules to connect additional turbines or SCADA systems without replacing the entire PLC system.
GE IC693CMM311
Typical Applications
The GE IC693CMM311 is widely used in industrial automation systems for:
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Power Generation:
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Connects Series 90-30 PLCs to turbine control systems, enabling real-time data exchange with SCADA servers for monitoring and control.
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Manufacturing:
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Links PLCs to assembly line equipment (e.g., robotic arms, conveyor belts) via Modbus RTU, ensuring synchronized operation.
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Petrochemical Industry:
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Integrates PLCs with refinery equipment (e.g., pumps, valves) using SNP, enabling safe and efficient operation in hazardous environments.
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Water Treatment:
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Connects PLCs to water quality sensors and pumps via Modbus RTU, maintaining proper flow and quality of treated water.
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