Mitsubishi Electric QJ71MB91 Modbus Interface Unit
The Mitsubishi Electric QJ71MB91 is a high-performance Modbus Interface Unit designed specifically for the MELSEC-Q Series programmable logic controllers. Engineered for robust industrial automation, this module enables seamless integration and communication across Modbus and Modbus-RTU networks. It features dual communication channels to maximize system versatility: Channel 1 supports standard RS-232, while Channel 2 supports RS-422/485 connections. The front panel is equipped with clear diagnostic LED indicators (RUN, ERR, NEU, SD, RD) and convenient DIP switches for quick hardware configuration. Manufactured in Japan, this open-type industrial control equipment operates efficiently in temperatures ranging from 0 to 55°C and carries major global certifications including CE, EAC, and cULus.
Technical Specifications:
- Brand: Mitsubishi Electric
- Model: QJ71MB91
- Product Series: MELSEC-Q Series
- Module Type: Modbus Interface Communication Unit
- Supported Protocols: Modbus / Modbus-RTU
- Communication Channels: Channel 1: RS-232 | Channel 2: RS-422/485
- Diagnostic Indicators: Status LEDs (RUN, ERR, NEU, SD, RD)
- Operating Temperature: 0 to 55°C
- Certifications: CE, EAC, cULus Listed (IND. CONT. EQ.)
- Country of Origin: Made in Japan
| Brand | Mitsubishi Electric |
|---|---|
| Model | QJ71MB91 |
Only logged in customers who have purchased this product may leave a review.
Shipping policy
If you are buying multiple items, please contact us before checking out so we can get you the best combined rate for shipping.
Our default shipping rate is $100, which is enough to cover the cost of most shipments, but it is not our expected shipping rate. Due to the varying weights and sizes of products and customer locations, please contact us with your location and the products you are interested in to get the best current shipping rates.
ENERAL DELIVERY INFORMATION
Orders will be processed and shipping during standard working hours (0830 – 1700 GMT+8) Monday to Friday (excluding Bank Holidays)
On rare occasions, your order may be handled and/or processed on a Saturday. However, we are unable to ship items on weekends, therefore any orders dealt with on the weekend will be send out the next following working day.
The cut-off point for orders to be shipped the same day is 14:00 – please contact us to confirm stock levels before placing your order
Any orders placed after the cut-off will ship the next working day assuming all parts are in stock and ready for dispatch.
All orders:
- must be paid for in full before any goods are dispatched
- require a signature upon delivery. Please ensure delivery can be made to an address where someone will be available to sign for the delivery
- are packaged with great care, ensuring your order and the contents it contains, makes it safely through the delivery network
Mitsubishi Electric QJ71MB91 Modbus Interface Unit
Enhance your MELSEC-Q Series PLC with the Mitsubishi Electric QJ71MB91 Modbus Interface Unit. Featuring dual RS-232 and RS-422/485 channels, this module delivers reliable Modbus-RTU communication for advanced industrial automation systems.
Reviews
There are no reviews yet.