This is a broken down flow of my problem.
Putting aside the change node at the top:
Press the inject node and get a message saying 192.168.0.254 is online.
The trigger node waits 10 seconds and if nothing is received I want it to send the same message but replace online with offline.
Alas this isn't happening.
--
Now the top part:
This sets the flow variable SCAN_FREQUENCY to 20000. (20 seconds)
I want the delay on the trigger node to be twice that value.
It is shown like this because there is no direct connection from how the SCAN_FREQUENCY is set and the trigger node.
The code:
[{"id":"7b035fc4.696038","type":"inject","z":"a941e919.4a7d88","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":100,"y":2270,"wires":[["d263b33b.c60ba8"]]},{"id":"d263b33b.c60ba8","type":"change","z":"a941e919.4a7d88","name":"","rules":[{"t":"set","p":"SCAN_TIME","pt":"flow","to":"20000","tot":"str"}],"action":"","property":"","from":"","to":"","reg":false,"x":290,"y":2270,"wires":[[]]},{"id":"ae0a9ed3.61274","type":"function","z":"a941e919.4a7d88","name":"","func":"msg = {\"topic\":\"192.168.0.254\",\n \"host\":\"192.168.0.254\",\n \"_topic\":\"Gateway\",\n \"payload\":\"192.168.0.254 On-line\",\n };\n\nreturn msg;","outputs":1,"noerr":0,"x":250,"y":2380,"wires":[["45d4648.bca2c9c","f302ebc0.037eb8"]]},{"id":"834f8cd5.72dd28","type":"inject","z":"a941e919.4a7d88","name":"","topic":"","payload":"","payloadType":"date","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":100,"y":2380,"wires":[["ae0a9ed3.61274"]]},{"id":"45d4648.bca2c9c","type":"debug","z":"a941e919.4a7d88","name":"","active":false,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","x":420,"y":2340,"wires":[]},{"id":"f302ebc0.037eb8","type":"trigger","z":"a941e919.4a7d88","op1":"","op2":"{\"topic\":\"192.168.0.254\",\"host\":\"192.168.0.254\",\"_topic\":\"Gateway\",\"payload\":\"192.168.0.254 Off-line\",\"_msgid\":\"f742073e.b764d8\"}","op1type":"pay","op2type":"json","duration":"10","extend":true,"units":"s","reset":"","bytopic":"all","name":"","x":440,"y":2380,"wires":[["598f8ae4.df6c7c"]]},{"id":"598f8ae4.df6c7c","type":"debug","z":"a941e919.4a7d88","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","x":610,"y":2340,"wires":[]}]
