Description
DELTA DOP-B-FX | DB9F to MD8 RS-422 HMI-to-PLC Communication Cable — 3M
The DOP-B-FX is a dedicated RS-422 communication cable for connecting a Delta DOP-B Series HMI to a Mitsubishi FX Series PLC. It enables real-time HMI control and monitoring of Mitsubishi FX PLCs via the Delta DOPSoft environment.
Key Features
- DB9 Female (9-pin D-Sub) on HMI side — connects to Delta DOP-B HMI RS-232/422 COM port
- MD8 / Mini-DIN 8-Pin (Male) on PLC side — connects to Mitsubishi FX Series RS-422 programming port
- RS-422 protocol — standard for Mitsubishi FX HMI communication
- 3-metre cable — standard control panel installation length
- OEM compatible — built to DOP-B-FX specification
Technical Specifications
| Cable Model | DOP-B-FX / DOP-FX |
| Cable Length | 3 Metres (3M) |
| Interface — HMI Side | DB9 Female (9-pin D-Sub) |
| Interface — PLC Side | MD8 / Mini-DIN 8-Pin (Male) |
| Protocol | RS-422 |
| Condition | OEM Compatible — New (no retail box) |
Compatible Models
- Delta DOP-B Series HMI (DB9 COM port side)
- Mitsubishi FX Series PLCs with MD8F socket: FX1N, FX2N, FX3U and FX series variants
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Disclaimer
Always verify the exact port type and model number on your device before ordering.
If you are unsure which model is suitable, chat with the NJ Bravo team before ordering. We will help you check the part number, connector, and compatibility.
Typical Use Cases
- Real-time HMI process visualization and control of Mitsubishi FX PLCs via Delta DOP-B panel
- DOPSoft HMI screen linked to Mitsubishi FX PLC data registers
Package Contents
- 1× Delta DOP-B-FX HMI-to-PLC Communication Cable, DB9F to MD8, 3M (OEM Compatible — New)
Warranty
- 90-day replacement warranty
- Covers manufacturing defects; physical damage and improper installation not included
Additional Notes
- OEM compatible — not a Delta-branded retail unit.
- Protocol is RS-422 — different from the DOP-DVP cable which uses RS-232. Confirm your HMI communication port setting before use.
- Use Mitsubishi FX Series communication protocol in DOPSoft HMI driver settings.




