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If MQTT Engine or MQTT Transmission client attempts to subscribe on a topic that is not allowed by the ACL for that client, the connection will fail and the client will not attempt to reconnect.

For example with With the following ACL, the Transmission client is not able to subscribe to the NCMD and DCMD topics

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If MQTT Engine or MQTT Transmission client attempts to publish on a topic that is not allowed by the ACL for that client, the connection will be forcefully closed and the client will attempt to reconnect.

For example with With the following ACL, the Transmission client can publish the NBIRTH for PLC 1 but is not able to publish the DBIRTH for edge node device D1

Code Block
R #, W spBv1.0/My MQTT Group/+/PLC 1


For example with With the following ACL, the MQTT Engine client is not able to send a rebirth request

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