Mark-

Right the original DA stuff you had to be a member, $$$, to get the specification and code examples, tools, etc.. For UA it changed, the specification is available to the public and you must be a member $$$ to get the code/tools/examples/etc..

The pycomm3 website has this: My reading is the CIPDriver does not support fetching tag names. So for the OP, Crossbow was correct. You could always try the LogixDriver. Perhaps the PLC does support it, just not documented.

A quick look, at the section, it does not appear the PLC supports fetching tag names.

It is and it is not trivial. I added it to PeakHMI awhile back. I wrote a bare bones program to fetch "All" while I was testing, and I thought I posted it here. It was named LogixTagRead.exe. I know later I made some changes in PeakHMI for better collection and possibly fix an issue, and never updated the test program, was not using it any longer. Let me know if not here and someone wants it. I found it is still on our website. The link to the program is: http://www.hmisys.com/downloads/LogixTagRead.zip No, installer. Copy the files to a directory, set properties and select the “Fetch” button. And "awhile back" was 2017. HA. I know I made changes a couple of years ago for much faster fetching in the HMI.

Many, wrong communication parameters, (baud rate, data bit count, etc.), malformed message, incorrect cable wiring, address does not exist, etc.

How about posting the solution?

You might want to give it a few days. It is a long holiday weekend in the USA, "Memorial Day".

The FINS protocol can be used over RS-232C. Perhaps you are not interested in reading about about FINS and Host link for the CJ1M CPU. The protocol specification referenced above might provide you with good information. I just looked at OmronPlcCommDotNetLib on GitHub. It has not been touched in 2 years.

I don't know of a library for any language. But, I never searched for one. The FINS protocol for CJ1M is CS/CJ and the document is Cat. No. W342-E1-09. A copy is on this site:

Which HMI?

Hello unfortunately I have a problem on cx one that when opening cx programmer tells me that the execution cannot continue because OSlicence.dll was not found and to reinstall the software. when I reinstall it it does not let me install because it tells me that SAP is already installed on the computer and to continue with the installation of cx common tool I have to uninstall sap. What is SAP? Can anyone help me? Thank you

Same with PeakHMI. There are two special characters. The colon ( : ) and the period ( . ). The colon is used to indicate a program name and the period is used to indicate a field name. If the tag is in a program, prefix the program name with a colon <programName:>tagname. Open_Time.ACC TowerCtrl:Open_Time.ACC

Hello, We have a free DF1 simulator at: http://www.hmisys.com/downloads/PeakHMISlaveSimulatorInstall.exe Test with it and if and if your message is successful, I will help. Contact me at the address in the program. Mark

Thank you.

Asked the the same question >7 days ago. Crickets.