I'm working with Codesys with MQTT, it has a block for use it, but I can only put the username and password, so I think i can´t publish anything, is something I can do?
I'm working with Codesys with MQTT, it has a block for use it, but I can only put the username and password, so I think i can´t publish anything, is something I can do?
There is no option to set the `clientId`?
I'm working with Codesys with MQTT, it has a block for use it, but I can only put the username and password, so I think i can´t publish anything, is something I can do?
There is no option to set the `clientId`?
No :/
Hm... the `clientId` must be unique on the MQTT server, because of any new connection with the same `clientId` terminates the old connection based on the specification.
This uniqueness can be guaranteed by two path in our system:
- the `clientId` is equals with the `deviceId` and one device can establish only one connection
- the beginning of the `clientId` is the value of the `userId`, so that you cannot accidentally or intentionally disturb another user's connections.
If you not able to set the `clientId`, this uniqueness cannot be guaranteed... at the moment, I have no idea about the workaround.
Can you check what the Codesys client sending as `clientId`?
