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Cirrus Link Modules Docs for Ignition 7.9.x
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When creating an Access Control List (ACL) for an MQTT Transmission client:
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When creating an Access Control List (ACL) for an MQTT Engine client:
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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 R spBv1.0/My MQTT Group/NDEATH/PLC 1, W # the Transmission client is not able to subscribe to the NCMD and DCMD topics
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 R #, W spBv1.0/My MQTT Group/+/PLC 1 we are able to publish the NBIRTH for PLC 1 but are not able to publish the DBIRTH for D1
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