Omron PLC still serviceable?

Hi, we have a large install of ventilation equipment in the field that is no longer working which is automated by an Omron PLC type SYSMAC CJIG CPU 43H.

I have no experience with Omron PLC programming or hardware but now trying to evaluate this install on the basis of:

  1. Is the PLC serviceable and new replacements available
  2. If Query 1 is yes can I find a programmer in the north east of England to help upload the program and take a look at what the problems are on site?

Any help with this project would be really appreciated.

Hello @ian.rae

It looks like that PLC was made obsolete back in 2012 and will be hard to find. Omron did recommend a replacement in part CJ2M-CPU13

As far as a programmer I could offer you to look at our Design Service providers however, it is more likely you could find someone locally who has PLC knowledge and could program this for you.


Thank you Robert for your fast response.
Is the replacement part likely to be available for the next say 5-10 years please? Is it also compatible with the other items in our current comms:
DA08 V

We are going to eventually propose a huge overhaul of this site on ventilation hardware and control so it would be poor of me to propose a significant cost to the client as a whole with a short life span product replacement at the heart.
Any comments would be very helpful.

Thank you

Hello @ian.rae
The part is currently active and at this time it is not showing any end-of-life information. Unfortunately, that is all we generally know about the life of a part. That could change in a week or it could be 10 years. Most products don’t have an End of Life plan until they are within a 6-12 month window of stopping production.

From the specs, it appears that the suggested replacement will be comparable to the old product and should work with the same products. Here is a link to the datasheet if you want your tech/programmer to verify compatibility.


Thank you Robert,

Sorry for so many questions and but a few more pls?
What would be the current programmer software and is this likely to be backward compatible with an uploaded program from our site dated 2011/2012?
Also is there any learning resource for configuration and programming available please?

Thanks you have been a great help.


It looks like you would not be able to run the old program as the old system appears to be using CX-Server or FinsGateway which I am not familiar with.

Omron does link to P068-E1-01 as a reference guide. I did not get a chance to review it in full. I do see in the datasheet for the CJ2M-CPU13 it lists 4 programming language options. Ladder Logic (LD),
Sequential Function Charts (SFC), Structured Text (ST), and Instruction Lists (IL)

Thank you Robert, I’ll have a read through this reference guide.

Many thanks