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3. Key Technical Specifications
- Model: CP-317/217IF (CP-217IF)
- Typical Part Number: 87317-2170 / JACP-317217
- Interfaces:
– RS-232C: 2 ports (D-sub 9-pin)
– RS-422/485: 1 port - Transmission Distance: RS-232C up to 15 m; RS-422/485 up to 300 m
- Transmission Speed: RS-232C 300 bps–19.2 kbps; RS-422/485 up to 76.8 kbps
- Supported Protocols: Yaskawa MEMOBUS (master/slave), MELSEC (Mitsubishi), OMRON, and free protocol
- Power: Supplied from base unit (+5 V, typical 300 mA)
- Mounting: Option slot on CP-9200SH or compatible machine controller base
- Operating Temperature: 0 °C to +55 °C
- Approximate Dimensions: Fits single option slot (approx. 40 × 130 × 105 mm class)
- Weight: Approx. 0.2–0.4 kg (module only)
Note: Exact connector pinouts, parameter settings, and register mapping are defined in the Yaskawa 217IF module manual. Always verify compatibility with the specific controller revision.
4. Product Introduction
The Yaskawa CP-317/217IF is a serial communication module designed for the CP-9200SH Machine Controller family and related systems. It provides two RS-232C ports and one RS-422/485 port, enabling connection to HMIs, higher-level PLCs, and third-party devices using MEMOBUS, MELSEC, or OMRON protocols.
Engineers install this module when they need reliable multi-protocol serial links without rewriting application code for message conversion. The module handles protocol translation internally, allowing the user program to exchange data via simple send/receive functions. As a discontinued product, current stock is New Surplus or tested residual inventory.
CP-317/217IF
CP-317/217IF
5. Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| No communication on any port | Module not recognized or power issue | ✅ High | Check module status LEDs; verify it appears in system configuration | Reseat module and confirm slot assignment |
| RS-232 link fails but RS-485 works | Baud rate, parity, or cable fault on RS-232 | ✅ High | Match baud rate, data bits, stop bits, parity exactly; test with known-good cable | Verify parameter settings in the 217IF definition window |
| Intermittent data errors | Ground loop, noise, or excessive cable length | ✅ Medium | Measure cable length; check shield grounding; reduce baud rate | Use shielded cable and proper termination on RS-485 |
| MELSEC or OMRON protocol fails | Incorrect protocol selection or station address | ✅ High | Confirm protocol type and station number in module parameters | Re-enter parameters and cycle power |
| Module online but no data exchange | Application MSG-SND/MSG-RCV not configured | ❌ Low | Check user program for correct function calls and buffer addresses | Review ladder/SFC code for communication instructions |
If the problem persists, record LED status, parameter screenshots, and error codes before contacting support.
6. Frequently Asked Questions (FAQ)
Q: What protocols does the CP-317/217IF support?
A: It natively supports Yaskawa MEMOBUS (master or slave), Mitsubishi MELSEC, and OMRON protocols, plus free (transparent) protocol. Protocol selection is done in the module parameter settings.
Q: Can I use this module with modern Yaskawa MP2000 or MP3000 controllers?
A: No. The CP-317/217IF is designed for the older CP-9200SH family and selected legacy platforms. Modern controllers use different option modules (for example 217IF-01 or Ethernet-based cards).
Q: How many ports are available?
A: Two independent RS-232C ports and one RS-422/485 port. Each port can be configured with its own baud rate and protocol within the module’s limits.
Q: Is this a hot-swappable module?
A: No. Power down the controller, observe ESD precautions, and reseat the module only when the system is offline. Incorrect insertion can damage the backplane or the module.
Q: Why is this module cheaper than current Yaskawa communication options?
A: It is a discontinued product sold as New Surplus or tested residual stock. Pricing reflects remaining inventory rather than current production cost. All units are functionally verified before shipment.
Q: Do I need special software to configure it?
A: Configuration is performed through the original engineering tool for the host controller (typically CP-717 or equivalent). Parameter windows allow selection of protocol, baud rate, station address, and port settings.
Q: What is the difference between CP-317/217IF and a plain 217IF?
A: CP-317/217IF is the common commercial listing that refers to the 217IF serial communication module used in CP-9200SH and related systems. Confirm the exact part number (often 87317-2170) against your existing module before ordering.
