Write issues with TIA V19 LCCF CipClient library

Hello All,

I have been testing with LCCF_CipClient. I also find that you cannot write to AB Externally Accessible (Read/Write) tags using the V19_1_0_10 version of the library. If I use the TIA V17 version library, the Write functionality works, but it has issues with connectivity if you disconnect the AB PLC.

Has anyone resolved the Write issues with the TIA V19 LCCF CipClient library?

Thanks.

Update: 2025.02.16

Focused on using the library ver1.0.5 as from what I can determine this allows the write to AB tags option, still cannot get this working with ver1.0.10.

So I have found that you can use the internal stat variable 'statDisablingCompleted' to reset the function and re-enable. As long as you allow for some time to establish connection to the AB PLC when the status code 16#7003 has been declared, the communication should begin again after status code has switched to 16#7002.

This has been tested with ethernet disconnected, and also with a power cycle of AB PLC.

Hopefully this helps in the future.

Test Equipment:

1517F (TIA V19), L83ES with EN4TR (F/W 32.12)

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Split from Siemens X Allan Bradley Ethernet IP Comm things I learned.

Hi,

I've got the exact problem with version 19, works like a charm with version 17.