I'm trying to connect my simens s7-1200 with MQTT broker but there is 16#8601 error. I had tried to use test.mosquitto.org and local broker on my PC, In both cases, I get the error.

Please, help me!

Hi,

Errorcode 8601 means the error comes from TCON-block.
Please show us the "diagnostics" values. There is the errorcode from TCON, which you can check in the TIA manual

 Please show us the diagnostic values. You can do it also by your own. Check the value and compare it with the manual.

Kirschiaub08

Hi,

Errorcode 8601 means the error comes from TCON-block.
Please show us the "diagnostics" values. There is the errorcode from TCON, which you can check in the TIA manual

 I have the same error

diagnostics:

Hi,

As already mentioned in this thread, The error code means, that TCON gives the error.

Take a look to the TIA manual/online help for TCON:

-> you need to configure a DNS server and add it in the PLC to use connection names like "test.mosquitto.org"

Hello song xiaobai,

welcome to the Forum! 

Please try to discuss your question in English language. This is an international community, and we try to focus on one language. Posting in English will help you to get more response to your question.

This is the translation of your question:

song xiaobai

Hello, I have the same error code, how did you solve it, hope to get your help, thank you very much. Easy to contact, my email [snip]

 Regards,
Jen_Moderator

i have the same problem too, if the 

 Hi, 

8601 -> From TCON

Check the manual for TCON and code "809A" -> The structure at the CONNECT parameter is not supported on an integrated interface or the length is invalid.

Correct the structure and it should work or give another error 

AlArsy

i have the same problem too, if the 

status: 16#8601

subfunctionStatus:16#0000_809A

stateNumber : 20

what do i have to do?

Thankyu for giving help