@Mr. Yu-Wen Tang: Hi  Mr. Yu-Wen Tang
I have downloaded your MQTT Client Example, I don't have a real PLC so I ran it on PLCSIM Advanced V2.0 and tried to test with MQTT broker in local network, but it always show error 16#80A1 of TRCV. I can't find out the issue.I have tried to use TRCV block in another test project but it show error 16#80A1, too.  Can your example or TRCV block run on PLCSIM advanced in the local network?

Thankyou very much.

Hi Yu-Wen,

Thank you for the Post,  I am  new to MQTT so am trying with  Siemens Basic publishing example. Am using S7 1518 PLC with Google LENZ app MQTT broker. I have tested this MQTT Broker with another client its working fine. But am unable to publish from our Siemens PLC. Am Missing Something ? Pls help me to resolve this .

Attachment for your reference.

Thanks in advance.

Regards,

Hi,

Thank you so much Mr. Yu-Wen!

Very clear program, developer can use it quickly.

By the way , that's a nice guide line documentation!

Thanks a lot!

Best Regards,

K.C Luo

Dear Mr @Yu-wen Tang, 

Thank for a helpful sharing.

I try to use your example for S7-1200. But when I turn on "enable" bit to connect cloud, I met this problem (left picture). After that, I modify with trigger that bit, I met another problem (right picture). Can you give me a adivce to solve this problem. 

Regard,

Dear kingsman10397,

[snip]

@nguyenduchuu

Same error info with me!!!

Did you solve it? I am also using PLCSimAdv.

And I am sure PLCSimAdv supports TSEND_C, and I already tested MQTT Publisher for SIMATIC CPU with PLCSimADV from here, it works!!

https://support.industry.siemens.com/cs/cn/en/view/109748872

So I think (guess) the blocks from @Yu-wen Tang may have some bugs. I also hope @Yu-wen Tang can helps us out!

 Did You resolve the problem ? Mayby You have a final version for 1200?. I am totally green in SCL and MQTT.

kingsman10397

Dear Mr @Yu-wen Tang, 

Thank for a helpful sharing.

I try to use your example for S7-1200. But when I turn on "enable" bit to connect cloud, I met this problem (left picture). After that, I modify with trigger that bit, I met another problem (right picture). Can you give me a adivce to solve this problem. 

Regard,