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LJ51AW12D2 Mitsubishi MELSEC-L Series AnyWire
Discontinued by Mitsubishi Electric (Factory Automation) — we can still source the original LJ51AW12D2 (new, used or refurbished, subject to availability). Request a quote below.
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Quick facts
| Availability | Confirmed on request |
| Category | Mitsubishi MELSEC-L Series – Network |
| Lifecycle | Discontinued |
| Warranty | 12-month (new) · 3-month (used/refurbished) |
Shipping & availability
Can I still buy the LJ51AW12D2 now that it is discontinued?
Yes. Mitsubishi Electric (Factory Automation) has discontinued the LJ51AW12D2, 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 LJ51AW12D2 be shipped?
LJ51AW12D2 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 LJ51AW12D2 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 LJ51AW12D2 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 LJ51AW12D2, subject to availability and destination.
The Mitsubishi Electric LJ51AW12D2 is a anyWire in the MELSEC-L Series. Master station, AnyWire DB A20 system compatible, powered by Anywire. Mitsubishi Electric has discontinued it (2024/09 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-L Series |
| Category | AnyWire |
| Type | AnyWire DB A20 |
| Sales status | 2024/09 Discontinued (Mitsubishi Electric) |
| Outline | Master station, AnyWire DB A20 system compatible, powered by Anywire |
Specifications
| Transmission clock | 125 kHz/31.3 kHz/7.8 kHz/2 kHz |
| Maximum transmission distance (total length) | 125 kHz: 50 m 31.3 kHz: 200 m 7.8 kHz: 1 km 2 kHz: 3 km |
| Number of connectable modules | 125 kHz: up to 128 31.3 kHz: up to 128 7.8 kHz: up to 128 2 kHz: up to 32 |
| Transmission system | Total Frame Cyclic method with double-duplex mode |
| Connection type | Bus topology (multidrop system, T-branch system, tree branch system) |
| Transmission protocol | Dedicated protocol (AnyWire DB A20) |
| Error control system | Double-check system |
| Number of connected I/O points | Up to 1024 points (input: 512 points/output: 512 points) (However, input: 1024 points/output: 1024 points can be set) |
| Transmission cable (D, G) | • UL-listed general-purpose 2-/4-wire cable (VCTF, VCT 0.75...1.25 mm 2 , rated temperature 70 ˚C or higher) • UL-listed general-purpose wire (0.75...1.25 mm 2 , rated temperature 70 ˚C or higher) • FK4-UL075-100 (Anywire) (0.75 mm 2 , rated temperature 90 ˚C) (UL-compliant item) (Regardless of the type of the transmission line, when the transmission distance exceeds 200 m, use wires with a diamet |
| Power cable (24V, 0V) | • UL-compliant general-purpose 2-wire cable (VCTF, VCT 0.75...2.0 mm 2 , rated temperature 70 ˚C or higher) • UL-compliant general-purpose wire (0.75...2.0 mm 2 , rated temperature 70 ˚C or higher) • FK4-UL075-100 (Anywire) (0.75 mm 2 , rated temperature 90 ˚C) (UL-compliant item) |
| External power supply: Voltage | 21.6...27.6 V DC (24 V DC, -10...+15 %), ripple voltage 0.5 Vp-p or lower |
| External power supply: Current | 0.5 A (when 128 slave modules are connected and the load current is not included) |
| Number of occupied I/O points | 32 points (I/O assignment: Intelligent 32 points) |
| Internal current consumption (5 V DC) | 0.20 A |
| External dimensions: Height | 90 mm |
| External dimensions: Width | 28.5 mm |
| External dimensions: Depth | 104.5 mm |
| Weight | 0.2 kg |
Specifications
| General specifications | Refer to the general specifications of the CPU module or remote head module. |
Downloads & documentation
Official documents from Mitsubishi Electric (Factory Automation), downloaded directly from the manufacturer.
Data sheets & manuals
| MELSEC-Q/L AnyWire DB A20 Master Module User's Manual (SH-080968ENG-F) | PDF · 1.80MB |
| Before Using the Product (BCN-P5852E-I) | PDF · 0.18MB |
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