What PLC systems is the AJ71UC24 compatible with?
It is designed for Mitsubishi MELSEC-A series systems.
1 actual photo shown first. Reference images are model-matched and must be confirmed before purchase.
Mitsubishi
AJ71UC24
AJ71UC24 Computer Link Module, RS232/485/422
Mitsubishi
From $218.46In stockDiscontinued
Product Description
The AJ71UC24 is a computer link module for Mitsubishi MELSEC-A series PLC systems, designed to provide serial communication interfaces for integration with HMIs, supervisory systems, and third‑party devices. Supporting RS‑232, RS‑485, and RS‑422, it enables point‑to‑point and multidrop configurations for flexible network topologies within industrial automation environments. The module is suited for applications requiring reliable data exchange across legacy serial protocols and can be deployed in control cabinets alongside other MELSEC-A I/O and network modules. Typical use cases include machine control, data logging, and line supervisory communications. The AJ71UC24 mounts within the MELSEC-A rack and connects using standard serial cabling and protocol settings. It is intended for professional installation by engineers familiar with PLC communications and serial standards. Package contents normally include the module; cabling and accessories are user‑supplied based on the selected interface. This unit’s versatility across multiple serial standards is a key differentiator for backward compatibility in brownfield upgrades.
Key Features
- •Supports RS232 RS485 RS422 interfaces
- •Compatible with MELSEC A series PLCs
- •Enables computer link and multidrop networking
- •Suitable for legacy serial integrations
- •Rack mount within MELSEC A system
Buy Options
Condition, indicative price, stock, and lead time. Confirm current availability via RFQ.
ConditionPriceAvailabilityLead time
New
Price: $306.82
Availability: 37 in stock
Lead time: ~2 day lead
Never Used
Price: $242.73
Availability: 4 in stock
Lead time: ~2 day lead
Used
Price: $218.46
Availability: 23 in stock
Lead time: ~2 day lead
FNFP
Price: RFQ
Availability: 24 in stock
Lead time: Quoted after RFQ
Specifications
- Model number
- AJ71UC24
- Communication interfaces
- RS-232, RS-485, RS-422
- Product type
- Computer link / multi-drop link module
- System compatibility
- MELSEC-A Series
- Ship weight
- 3 lb (approx)
- Part #
- AJ71UC24
- Category
- PLCs/Machine Control
- Category
- PLC Module/Rack
- Weight
- 0.79 lbs
Before we quote this part
Actual photos when available
Nameplate, condition, and visible wear can be shared before quote when stock photos are not enough.
Test notes for used units
Power-on or function test status is stated when available, with clear condition grading.
Trackable global shipping
DHL, FedEx, UPS, or forwarder options can be quoted with packing photos and tracking details.
Clear DOA boundary
For tested units, quote terms can include 7-day DOA support unless otherwise stated.
Independent sourcing disclaimer
We are not an authorized distributor, reseller, or representative of Siemens, Mitsubishi, Omron, or other manufacturers listed on this site. All product names, trademarks, brands, and logos are the property of their respective owners. Products may be used, refurbished, surplus, or sourced from the secondary market unless otherwise stated.
Need AJ71UC24 availability?
Prices and stock can change. Submit quantity, required condition, and destination for a current quote.
FAQ
Which serial interfaces are supported?
RS-232, RS-485, and RS-422 are supported for point-to-point and multidrop.
Does the module include serial cables?
No, cables and accessories are typically user-supplied based on the chosen interface.
Can it be used for multidrop networks?
Yes, it supports computer link and multidrop configurations.
Is there a warranty?
Warranty varies by seller; verify with your distributor.