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3. Key Technical Specifications
| Parameter | Value |
|---|---|
| Ethernet Ports | 2 × 10BaseT / 100BaseTX auto-sensing RJ45 |
| Embedded Switch | Yes – supports daisy-chaining |
| IP Addresses | One |
| Ethernet Processor | 200 MHz |
| Serial Port | RS-232 Station Manager (9-pin D-sub), 1200–115200 bps |
| Supported Protocols | SRTP, Ethernet Global Data (EGD), Modbus TCP Client/Server |
| Max Connections (typical) | Up to 48 SRTP server; up to 16 Modbus/TCP server |
| Power Requirements | 840 mA @ 3.3 VDC; 614 mA @ 5 VDC |
| Slot Requirement | 1 slot, Universal Backplane (PCI bus) |
| Hot Swap | Supported (CPU firmware 2.51 or higher) |
| Operating Temperature | 0 to 60 °C (standard industrial rating) |
| Duplex Modes | Half and full duplex, auto-negotiation |
4. Product Introduction
The IC695ETM001 is the standard Ethernet interface module for GE Fanuc / Emerson PACSystems RX3i controllers. It installs in a single slot of a universal RX3i backplane and gives the CPU TCP/IP connectivity for programming, HMI, SCADA, and peer-to-peer data exchange.
It provides two auto-sensing 10/100 Mbps RJ45 ports with an embedded switch, one IP address, and native support for SRTP, Ethernet Global Data (EGD), and Modbus TCP (client and server). A dedicated RS-232 Station Manager port allows local diagnostics and configuration. The module is the go-to choice when an RX3i CPU lacks built-in Ethernet or when additional isolated network ports are required.
IC695ETM001
IC695ETM001
5. Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| No Ethernet OK or LAN OK LED | Power, backplane, or hardware fault | ✅ High | Verify +3.3 V / +5 V at backplane; reseat module; check CPU firmware | Confirm voltages and seating first; replace module if LEDs stay dark |
| Link LED off on both ports | Cable, switch, or port failure | ✅ High | Test with known-good straight-through cable and switch; try both ports | Swap cable and port; if both fail, module is suspect |
| Cannot ping or connect via SRTP | IP conflict, wrong subnet, or firewall | ⚠️ Medium | Verify IP/subnet with Station Manager or SetIP tool; check ARP table | Confirm unique IP and correct gateway; clear ARP cache |
| Station Manager port unresponsive | Baud rate mismatch or bad cable | ⚠️ Medium | Match 1200–115200 bps settings; use proper null-modem cable | Mirror exact serial settings from the previous module |
| Intermittent EGD or Modbus drops | Network load, duplex mismatch, or EMI | ⚠️ Medium | Check collision/error counters; force full-duplex if needed | Verify switch settings and cable quality; reduce network traffic |
| Hot-swap fails or module faults | CPU firmware too old | ✅ High | Confirm CPU firmware ≥ 2.51 | Upgrade CPU firmware before attempting hot-swap |
If LEDs and basic connectivity checks do not resolve the issue, capture the Station Manager status, diagnostic buffer, and clear photos of the module faceplate. Send them for further review.
6. Frequently Asked Questions (FAQ)
Q: Does the IC695ETM001 have built-in Ethernet for the CPU? A: Yes. It is the dedicated Ethernet interface module for RX3i CPUs that lack embedded Ethernet (such as the IC695CPU320 or CPU315). Install it in the main rack to enable network programming, EGD, and Modbus TCP.
Q: Can I hot-swap the IC695ETM001? A: Yes, provided the RX3i CPU is running firmware version 2.51 or higher. Always follow proper ESD precautions and observe the status LEDs after insertion.
Q: How many IP addresses does it support? A: One IP address for the module. Both RJ45 ports share the same MAC and IP through the embedded switch. Later -Kxxx hardware revisions added a separate front-panel port and dual-IP capability, but the classic IC695ETM001 uses a single IP.
Q: What protocols does it support out of the box? A: SRTP (for programming and data access), Ethernet Global Data (EGD) for producer/consumer exchanges, and Modbus TCP as both client and server. It also supports SNTP time synchronization.
Q: Is the Station Manager serial port required? A: Not for normal operation. It is used for local diagnostics, parameter viewing, and firmware-related tasks. Most day-to-day configuration is done over Ethernet with PAC Machine Edition or the SetIP utility.
Q: Why is a new-surplus IC695ETM001 often priced lower than a new CPE-series CPU with embedded Ethernet? A: The ETM001 is a mature interface module. New-surplus stock comes from project overruns or inventory liquidation, is fully tested, and is sold at a lower price while still carrying warranty. Condition is stated as New Original / New Surplus.
Q: Can I daisy-chain multiple devices off the two ports? A: Yes. The embedded switch allows simple daisy-chaining. For larger networks or redundancy, use an external managed switch and treat the ETM001 as a single network node.
