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At this point you have a fully functional system which can be expanded or modified as required. Below are some addition configuration options to try:
Setup MQTT Transmission to automatically publish files
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Create a new File record
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following Step 4 in tutorial checking the 'Enable Auto-Publish' and
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configuring the Tag Folder Path
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to "files_auto".
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With auto-publish
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enabled, MQTT Transmission will create a tag called 'Publish Files Folder' instead of 'Publish File Path' as shown below.
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MQTT Transmission will scan the folder specified in the tag, with a frequency defined by the File Scan Rate, and publish all files that appear in this directory automatically. When the file is successfully transferred both
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the file and associated md5 sum file will be removed from the originating filesystem.
Just as with the 'manual publish' option, an associated md5 sum file must be present and properly represent the md5 sum of the target file before it will be published.
Adjust the file transfer configuration to define how quickly a file transfer occurs and how long before a timeout will occur on failure to receive host side acknowledgements based on the size of files you are sending and any bandwidth constraints that you may have.
Setup two Ignition systems - a host system installed with MQTT Engine and MQTT Distributor and and edge system installed with MQTT Transmission
By default, MQTT Transmission is configured to connect to MQTT Distributor on tcp://localhost:1883. As the MQTT Distributor is installed on a different server, we will need to edit the configuration to allow MQTT Transmission to connect to the host server.
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The MQTT Server must be accessible to the Ignition system running MQTT Transmission. In order for this to work port 1883 must be open to outside connections. Make sure this is allowed via your operating system's firewall configuration and any anti-virus software you may have installed. This configuration is not recommended for production systems. If running this in production, you should be using TLS encryption on port 8883. More information on how to configure TLS can be found here. |
Navigate to the MQTT Transmission > Settings in the left side bar of the Ignition Gateway UI and select the Servers tab.
Change the server URL to point to the server IP address or domain name of the Ignition system running MQTT Distributor and save the configuration.
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