MQTT Publish send timeout in Codesys V3.5.21

[teejc]

Hi,

Thanks for creating this wonderful MQTT library for Codesys.

Currently I'm testing out the TestMQTTGithubWindowsWithoutTLS project and facing the problem with publishing data. I'm using your MQTT library version 1.2.0.7 and latest dependencies. I downloaded the program into my Control Win V3 X64 version 3.5.21 to test with a local mosquitto broker.

In the mosquitto verbose mode logging i can see the codesys client is connected to the broker. By my understanding, the program should be publishing the tick string every 2 second. However i'm not seeing the publish message in the mosquitto logging. At the same time, in Codesys i notice the publish FB PayloadString value is constantly changing but sendActive and SendTimeout bits are always true.

I did try publish some random string from MQTTX to the topic "CODESYS-MQTT-BY-SD/State" and i'm able to see the data i send in the StringCallback list, so the subscribe FB should be working.

Could you help look into this?

Thank you.

[stefandreyer]

Hi,

do you have a vailid referenz for MQTT_IN_OUT here?:

please have a look in the errorHistory in your client FB too:

[teejc]

There's no value compare to yours:

This is my error history:

This is my program code:

[stefandreyer]

Hi,

do you have any problems allocating dynamic memory?

is this false in your clientFB too?:

[teejc]

I did allocate a certain amount of dynamic memory, as you can see below:

The bit in clientFB is False.

[stefandreyer]

Hi,

are you sure the programm is called? can you share a online screenshot in the client FB?

[stefandreyer]

Hi,

should look like this:

[teejc]

Hi,

This is my screenshot of the clientFB

This is my screenshot of MQTTClient