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QJ71E71-B5 Mitsubishi MELSEC-Q Series Ethernet
Discontinued by Mitsubishi Electric (Factory Automation) — we can still source the original QJ71E71-B5 (new, used or refurbished, subject to availability). Request a quote below.
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Quick facts
| Availability | Confirmed on request |
| Category | Mitsubishi MELSEC-Q Series – Information/network |
| Lifecycle | Discontinued |
| Warranty | 12-month (new) · 3-month (used/refurbished) |
Shipping & availability
Can I still buy the QJ71E71-B5 now that it is discontinued?
Yes. Mitsubishi Electric (Factory Automation) has discontinued the QJ71E71-B5, but sourcing discontinued parts is what PartnerPLC specialises in — new old stock, used and refurbished units. Request a quote and we'll confirm availability, condition and lead time.
When can QJ71E71-B5 be shipped?
QJ71E71-B5 is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.
Can I pick up QJ71E71-B5 in person?
Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.
Is express delivery available?
Yes — mention it when you request a quote for QJ71E71-B5 and we'll include express shipping options in our reply.
My factory is down and I need this urgently — can you help?
For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for QJ71E71-B5, subject to availability and destination.
The Mitsubishi Electric QJ71E71-B5 is a ethernet in the MELSEC-Q Series. 10BASE5. Mitsubishi Electric has discontinued it (2017/02 Discontinued); PartnerPLC sources discontinued Mitsubishi parts on the surplus market for maintenance of existing machines. Specifications and manuals below are Mitsubishi Electric's own data.
Specifications
Product
| Series | MELSEC-Q Series |
| Category | Ethernet |
| Sales status | 2017/02 Discontinued (Mitsubishi Electric) |
| Outline | 10BASE5 |
Specifications
| Transmission specifications: Type | 10BASE5 |
| Transmission specifications: Data transmission speed | 10 Mbps |
| Transmission specifications: Flow control | Back pressure congestion control(Half-duplex) |
| Transmission specifications: Communication mode | Half-duplex |
| Transmission specifications: Interface | AUI |
| Transmission specifications: Transmission method | Base band |
| Transmission specifications: Maximum segment length | 500 m |
| Transmission specifications: Maximum node-to-node distance | 2500 m |
| Transmission specifications: Maximum number of nodes/connection | 100 units/segment |
| Transmission specifications: Interval between the minimum nodes | 2.5 m |
| Sending/receiving data storage memory: Number of simultaneously open connections | 16 connections (connections usable on a program) |
| Sending/receiving data storage memory: Fixed buffer | 1K words × 16 |
| Sending/receiving data storage memory: Random access buffer | 6K words × 1 |
| Sending/receiving data storage memory: E-mail: Attached file | 6K words × 1 |
| Sending/receiving data storage memory: E-mail: Main text | 960 words × 1 |
| 12 V DC external power supply capacity (Transceiver) | It is necessary to apply a transceiver, or a device that meets AUI cable specifications. |
| Number of occupied I/O points | 32 points (I/O assignment: Intelligent 32 points) |
| Internal current consumption (5 V DC) | 0.50 A |
| External dimensions: Height | 98 mm |
| External dimensions: Width | 27.4 mm |
| External dimensions: Depth | 90 mm |
| Weight | 0.12 kg |
Specifications
| General specifications | Refer to the general specifications of the CPU module. |
Downloads & documentation
Official documents from Mitsubishi Electric (Factory Automation), downloaded directly from the manufacturer.
Data sheets & manuals
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