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SKU: IC695CMM004

GE Fanuc IC695CMM004 Serial Communications Module

The GE Fanuc IC695CMM004 is a 4-port serial communication module for PACSystems RX3i PLCs. It supports RS-232/422/485 interfaces and protocols like Modbus and DNP3. This high-density module features 500VDC port isolation and provides scalable connectivity for complex industrial networks.

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The IC695CMM004 serves as a high-capacity serial interface for the PACSystems RX3i controller platform. This module provides four independent ports for bidirectional data exchange between the CPU and external industrial devices. Each port utilizes an RJ45 connector and operates separately to maximize system throughput. Furthermore, the module supports a wide range of standard protocols including Modbus Master/Slave and DNP3. It effectively bridges the gap between modern PLC control and legacy serial-based field equipment.

Technical Specifications

FeatureDetails
ManufacturerGE Fanuc / Emerson
Model NumberIC695CMM004
System SeriesPACSystems RX3i
Port Count4 Independent Serial Ports
Port InterfaceRJ45 Connectors
Supported StandardsRS-232, RS-422, RS-485
Baud Rate Range1200 bps to 115.2 Kbps
Isolation Rating500VDC (Port-to-Port)
Power Usage0.7A @ 3.3VDC / 0.15A @ 5VDC

Core Technical Characteristics

  • Multi-Protocol Support: The hardware natively handles Modbus, CCM Slave, DNP3, and generic Serial I/O communications.
  • Scalable Port Density: Users can install six modules per CPU to achieve 24 simultaneous serial connections.
  • Flexible Signal Modes: Each individual port supports software-configurable RS-232 or RS-422/RS-485 multi-drop wiring.
  • Enhanced Signal Protection: Internal circuitry provides 500VDC isolation between ports to prevent cross-channel electrical interference.
  • Advanced Diagnostics: Front-panel LEDs indicate module health, communication activity, and specific hardware fault conditions.
  • Field Upgradeable: The module supports firmware updates to maintain compatibility with evolving industrial communication standards.
  • Thermal Efficiency: The unit operates reliably within standard industrial environments from 0°C up to 60°C.

Industrial Applications

System integrators frequently deploy the IC695CMM004 to monitor power meters and variable frequency drives. This module also serves as a critical link for protocol converters and human-machine interfaces. Because it supports DNP3, it is highly effective for utility automation and remote telemetry applications. The compact design allows for efficient placement within RX3i universal backplanes. Consequently, it minimizes the footprint required for complex multi-device communication hubs.

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Frequently Asked Questions

Q: Is the module capable of being hot-swapped while the system is powered?A: Yes, the module is designed to be extracted and inserted while the RX3i backplane is energized; however, field wiring must be verified to ensure no short-circuit conditions are created during the removal process.Q: How is the signal response time managed in high-speed applications?A: A typical response time of 7 milliseconds is imposed by the hardware filter circuits. This latency is inherent and should be accounted for when high-speed pulse capture is required.

Field Installation Guidelines

  • The module is to be mounted onto the designated RX3i backplane slot. A mechanical click is heard when the module is fully seated.
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  • Shielding must be grounded at the designated earth terminal to ensure that electromagnetic interference is properly diverted.
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