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Error code 80C6 appears when Tia Portal connects with Mosquitto Broker

Created by: xiang gao at: 10/12/2022 8:35 PM (4 Replies)

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10/12/2022 8:35 PM	Rate (0)
xiang gao Posts: 18 Rating: (0)	I am trying to connect with mosquitto Broker through Tia Portal. But I got error code 16#80C6. I checked the relevant information, and the error message is "The connection partner cannot be reach (network error)". But still, I don't know how to fix this. Can someone help me? By the way. The ip address of my computer is 192.168.0.103. The ip address of Siemens PLCSIM Virtual Ethernet Adapter is 192.168.0.10. The ip address of the plc I set is 192.168.0.20 Attachment Screenshots.zip (904 Downloads)
xiang gao Posts: 18 Rating: (0)	Last edited by: Jen_Moderator at: 10/13/2022 09:24:13 All attachments added as a zip file.
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10/13/2022 12:00 PM	Rate (0)
Cocolino Silver Member Joined: 4/8/2021 Last visit: 12/17/2025 Posts: 641 Rating: (114)	Hi xiang gao, I'm not sure if PLC Sim Advanced can be used for MQTT connections. Have you checked the manual? In addition, to my knowledge 80C6 can also appears if the hwIdentifier is wrong. In this case i would try using 1 and 0 as hwIdentifier. Hope it helps. Br, Cocolino
	Best regards, Cocolino Don't forget to use the Rate Function if you find my answer useful :) THX :)
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10/15/2022 6:12 PM	Rate (0)
xiang gao Posts: 18 Rating: (0)	thank you very much! I have solved the connection problem. [snip] Attachment picture.png (1058 Downloads)
xiang gao Posts: 18 Rating: (0)	Last edited by: Jen_Moderator at: 10/17/2022 09:19:40 Division of questions into separate topics.
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10/17/2022 11:04 AM	Rate (0)
Cocolino Silver Member Joined: 4/8/2021 Last visit: 12/17/2025 Posts: 641 Rating: (114)	xiang gao thank you very much! I have solved the connection problem. [snip] Good to hear that. Do you mind share the solution with us? I'm sure it will be helpful also for other users. Br, Cocolino
	Best regards, Cocolino Don't forget to use the Rate Function if you find my answer useful :) THX :)
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This contribution was helpful to 1 thankful Users Jen_Moderator

4/6/2023 3:21 PM	Rate (0)
1k01ye Member Joined: 3/9/2015 Last visit: 10/24/2025 Posts: 6 Rating: (0)	xiang gao I am trying to connect with mosquitto Broker through Tia Portal. But I got error code 16#80C6. I checked the relevant information, and the error message is "The connection partner cannot be reach (network error)". But still, I don't know how to fix this. Can someone help me? By the way. The ip address of my computer is 192.168.0.103. The ip address of Siemens PLCSIM Virtual Ethernet Adapter is 192.168.0.10. The ip address of the plc I set is 192.168.0.20 computer: 192.168.1.103 plcsimVirt: 192.168.0.10 MQTT: 192.168.0.10 PLC:192.168.0.20 HwIdentifier try using 0. Maybe, it will be OK!

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