Emerson RX3i IC695CMM002 2-Port Serial Communication Module

Product Overview

The IC695CMM002 is a high-performance serial communication module engineered for the PACSystems RX3i controller platform, originally developed by GE Intelligent Platforms and currently supported under Emerson Automation. Designed to expand system connectivity, this option module equips the host CPU with two independent, isolated serial interfaces to integrate legacy devices, operator interfaces, and multi-vendor controllers. Each port supports software-selectable RS-232, RS-422, or RS-485 physical layers, granting engineers the flexibility to configure networks for either 2-wire half-duplex or 4-wire full-duplex operation. Up to six IC695CMM002 modules can be installed within a single RX3i CPU backplane, depending on power budget and system architecture requirements.

Technical Specifications

Global PLC Spare HUB's Insight & Field Experience

Engineers deploying the IC695CMM002 in heavy industrial environments often encounter grounding loops when connecting distant third-party instruments over RS-485. Global PLC Spare HUB recommends utilizing the module's robust optical and galvanic isolation ratings to mitigate ground potential differences between remote terminal units and the main RX3i rack. When configuring DNP3 networks, remember that assigning DNP3 Master or Slave to one port restricts the alternate port exclusively to DNP3 communication protocols. For legacy Modbus polling loops, ensure proper termination resistors are matched to the characteristic impedance of your cabling run to prevent packet corruption at baud rates above 38.4 kbps.

Installation & Compatibility Guide

• The IC695CMM002 slides directly into any universal backplane slot of the PACSystems RX3i system.
• The module supports hot-swappable replacement, permitting maintenance technicians to swap out faulty units without powering down the entire rack.
• Configure physical parameters and port assignments using Machine Edition programming software.
• Firmware version 1.32 or later is required to utilize advanced half-duplex flow control configurations via Machine Edition Release 5.90 SP1 SIM 6 or newer.

Diagnostics & Troubleshooting Capabilities

• Module OK LED: Illuminates green during normal operation; flashes or turns off during fatal hardware faults.
• Port Fault LED: Signals transmission errors, framing mismatches, or physical layer faults.
• Port Status LEDs: Reflect active data transmission and reception traffic on Port 1 and Port 2.
• Internal Diagnostics: Automatically detects and reports Watchdog faults, RAM failures, and Flash memory checksum errors directly to the RX3i CPU fault table.

Typical Application Scenarios

• Interfacing variable frequency drives and digital power monitors via Modbus RTU protocol.
• Communicating with remote telemetry units (RTUs) across water treatment plants using DNP3 communication standards.
• Integrating legacy barcode scanners, weigh scales, and printers through custom Serial I/O user protocols.

Packaging, Warranty & Shipping Terms

• Packaging: Antistatic industrial-grade packaging enclosed in a ruggedized outer carton to prevent transit damage.
• Warranty: Backed by a comprehensive 12-month warranty covering functional defects.
• Shipping Carriers: Fast global delivery dispatched via FedEx, UPS, and DHL.
• Dispatch Time: Orders ship within 24 to 48 hours from order confirmation.

Frequently Asked Questions

Q: Can both ports on the IC695CMM002 run different protocols simultaneously?

A: Yes, each of the two ports is completely independent and can run distinct protocols, such as Port 1 configured as Modbus Master and Port 2 configured as Modbus Slave, with the exception of DNP3 restrictions.

Q: What type of cabling is required for the RJ-45 serial ports?

A: Standard shielded twisted-pair cabling terminated with RJ-45 connectors is recommended, ensuring proper pinout adaptation for RS-232, RS-422, or RS-485 signaling standards.

Q: Is field firmware upgrading supported on this module?

A: Yes, the onboard flash memory allows field engineers to upgrade module firmware using the programming software toolkit when new protocol features or maintenance patches are released.

Q: How many communication modules can be placed in a single rack?

A: A maximum of six IC695CMM002 modules can operate concurrently on a single PACSystems RX3i CPU backplane, subject to total power supply capacity constraints.

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