Part Number - A0J2HCPUR21

A0J2HCPUR21 is

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Product Details

  • A Series CPU Melsec A0J2 Controller (A0J2H-CPU-R21)
  • Manufacturer: Mitsubishi
  • Series: A Series CPUs

Product Description

The Mitsubishi A0J2HCPUR21 (A0J2H-CPU-R21) is an A series data link module. The I/O points that the data link possesses are aggregated to be 336pts, and if an extension base is concatenated with it, the quantity of I/O points permissible is 480pts; the number of link points that may be generated is 512pts along with 64 bytes, and same number may be inserted. The A0J2HCPUR21 data link module has 1024 link points in the relay and register. The relay however has 128 bytes and the register has 2048 bytes. The memory utilized is a RAM. The current that is consumed is 0.53A while the voltage is 5VDC.

In appending the A0J2HCPUR21 data link module to the extension base, multiple connections will need to be made. First a cable must attach to a couple of modules, especially to the power supply. This power supply may link with another cable that eventually uniting the data link module to the extension base. Upon the extension base that the A0J2HCPUR21 data link module is now connected with can I/O and modules that perform specific functions.

The A0J2HCPUR21 data link module has many exterior features. One such feature is the terminal block that permits the data link module to obtain voltages of 100 or 200VAC. Then there are sundry switches like the DIP, which can nominate whether the ROM or the RAM is to be used, it can also manage both the input and output. There is also mode switch and a switch that appoints the “station number” of the data link module.

Here is the manual referenced:

Technical Specifications

Part Number: A0J2HCPUR21 (A0J2H-CPU-R21)
Module Type: Data Link Unit
Number of Points: 336pt
Memory Capacity: 32k bytes
Weight: 2.56lbs (1.16kg)

Shipping and Order Information

  • TRW Supply can usually ship in stock items same day before 3:30 PM EST for no extra cost and before 5 PM with a rush fee
  • Mitsubishi A Series CPUs Shipping options vary by location. Call for an accurate quote.


  • The Mitsubishi A0J2HCPUR21 comes with a two year warranty.
  • A three year warranty is available. Please inquire for pricing.

Additional Information

TRW Electric & Supply Company is a global automation supplier. We deliver reliable new and refurbished parts at a great value. Our product focus is Omron and Mitsubishi products, but we have been able to provide our customers with solutions from other manufacturers as well. Our goal is to supply the automation industry with the best service and pricing, and of course conduct business with a high level of integrity.

Authorized Distributors

A Mitsubishi Authorized Distributor for ASERIES is not the only source for Mitsubishi products. Many of the Mitsubishi products have been discontinued and therefore are no longer available from authorized suppliers. TRW Electric & Supply has many new and refurbished Mitsubishi ASERIES parts available for purchase.

More Information: AOJ2HCPUR21, AO-J2HCPUR21, A0-J2HCPUR21, A0J2H-CPU-R21

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