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hi sir,
i have CQM1H CPU 51 PLC.still it not communicate with the system.I have cx programmer version v 9.5.
using cables: CN 226-USB CIF02 Combination.
When i connect auto online,it not showing this plc name.Only showing like c series,cj series, like.
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http://industrial.omron.com.br/uploads/arquivos/Datasheet-CQM1H.pdf
The cable that you are using is not listed in the datasheet for the controller.I believe that you have the wrong cable.
https://www.lammertbies.nl/comm/cable/plc-omron.html
The above link will give you the RS232 pinout.
I have had success communicating using the USB port of a computer using the Ugreen USB to RS232 cable.
http://www.ugreen.com.cn/product-681-en.htmlHope this helps you out.
Regards,
Garry
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Hello PdL,
I was reading a thread that you shared with Bertie Baker about a loss of a PLC unable to connect after repowering and wondered if you got anywhere with it. I have put Supervisor on to 8 of our production lines in Carlisle England in order to data log production. Problem is that on Saturday morning 0600 the operators switch off the panels supplying the PLCs and then on Monday the Supervisor runtime has to be restarted in order for the data logging etc to resume.
Kind Regards
Peter