Supported device types and versions
About the MQTT Sparkplug protocol
Communication line configuration
Communication line parameters
Communication station configuration
I/O tag configuration
Tell commands
Literature
Document revisions
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The Value column contains the received value.
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| STCOMMAND | STCOMMAND StationName PUTOLDVAL BeginTime EndTime | For Payload Type = Edge Node: The Tell command reads out historical values of output I/O tags (if the I/O tags or their control objects are archived) and sends them as historical values. Reading works independently of the Store & Forward protocol parameter. Using this command, it is possible to send historical values even for the period when the D2000 KOM was turned off (and therefore the Store & Forward functionality could not work). Example: STCOMMAND B.MQTT_MOSQUITTO_EN.Device1 PUTOLDVAL "30-05-2025 00:00:00" "30-05-2025 00:10:00" |
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