ICP DAS USA UA-5200 Series, Руководство пользователя

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UA-5200 Series User Manual V4.3 ICP DAS
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7.3. MQTT Group Connection
This function can set up the MQTT connection with local and remote brokers. Setting with
the MQTT JSON function in the Convert Setting, It can make the I/O module messages in
groups and then mapping to the user-defined publish and subscribe topics.
If the MQTT Group connection needs to use an external MQTT remote Broker, you need to
set the remote Broker connection first and then set the connection group list. This page is
for the setting of new, remove and set up the connection group list and their function
parameters.
Setting Sequence for the MQTT Group Connection:
1. Set up a connection MQTT Broker of Local or Remote Broker.
2. Add and set up a MQTT connection group name in the List.
3. Set up the contents of the Topic messages published/subscribed by other external
MQTT devices that supporting JSON format for mapping to the Variables Table of the
UA-5200 controller.
4. Convert the data contents of the MQTT device into JSON format of groups to
communicate with other protocols.
For the certificate about the communication security, please refer to Chapter 12 .
This section will introduce the function items and setting parameters.