IFM AL1340 - Page 57

IO-Link Master with Modbus TCP Interface DataLine 4 Ports IP 65 / IP 66 / IP 67
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9.2.15 MQTT support
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The AL1340 can operate as a client in a MQTT-based communication environment. By using the
subscribe service it is possible to send messages to a MQTT broker (PUBLISH).
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Example: Publish the temperature to an MQTT broker
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Task: Publish the temperature of an IO-Link master to an MQTT broker (IP address MQTT broker:
192.168.82.100, port: 1883, Topic:abc).
Solution: xxx
 Request:
{
"code":"request",
"cid":-1,
"adr":"iolinkmaster/port[1]/portevent/datachanged/subscribe",
"data":{
"callback":"mqtt://192.168.82.100:1883/abc",
"datatosend":["processdatamaster/temperature"}
}
 Response:
{
"cid":-1,
"code":200
}