Trigger node function

[Hermann]

I quote from the trigger node info file:
By setting the first output to nothing, and selecting extend timer - a watchdog timer can be created.
No output will happen as long as repeated inputs occur within the timeout period.

The picture trigger2.jpg shows the configuration of the trigger node.
trigger1.jpg shows a test flow with the inject node sending the string xx every second.

According to the above info, the trigger node should never send any output because there is an input every second.
Still in the debug window I see five times xx followed by time out over and over again.
node-red version 0.10.10

Any ideas?

[Nicholas O'Leary]

I've just created a similar flow and it works as expected.

Can you share the exact flow so we can try to recreate it?

Nick

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[Hermann]

Here it is:

[{"id":"8f892934.d8d5e","type":"inject","name":"","topic":"1s","payload":"xx","payloadType":"string","repeat":"1","crontab":"","once":true,"x":261,"y":139,"z":"ab31f3fd.a0c69","wires":[["9a4a011d.3c743","e9ea0b73.cda1c8"]]},{"id":"122896ef.c32071","type":"debug","name":"time out","active":true,"console":false,"complete":"payload","x":610,"y":138,"z":"ab31f3fd.a0c69","wires":[]},{"id":"9a4a011d.3c743","type":"trigger","op1":"1","op2":"time out","op1type":"nul","op2type":"val","duration":"5","extend":true,"units":"s","name":"","x":447,"y":138,"z":"ab31f3fd.a0c69","wires":[["122896ef.c32071"]]},{"id":"e9ea0b73.cda1c8","type":"debug","name":"","active":true,"console":false,"complete":false,"x":451,"y":210,"z":"ab31f3fd.a0c69","wires":[]}]

[Nicholas O'Leary]

Thanks, fix pushed to git.

[Hermann]

Thanks Nick. It works now.
And I learned something new: advantage of === vs. == Didn't know that...

[Mark Jacobs]

I guess I am missing something. The info says it can repeat and I can't figure out how to do that. I want it to be a watchdog and when the heartbeat stops repeat a message at intervals until the heartbeat resumes. Any help appreciated.

Thanks

[Simon Walters]

I think you need to cascade 2 trigger nodes to get the effect you desire

[{"id":"3fec7c71.e08074","type":"inject","z":"16fe8d0f.9e6ec3","name":"","topic":"","payload":"1","payloadType":"num","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":130,"y":120,"wires":[["8655b61c.dd0d28","cfb46a2f.3e4a38"]]},{"id":"8655b61c.dd0d28","type":"trigger","z":"16fe8d0f.9e6ec3","op1":"","op2":"fail","op1type":"nul","op2type":"str","duration":"3","extend":true,"units":"s","reset":"","bytopic":"all","name":"","x":380,"y":120,"wires":[["59d20a02.b9e134"]]},{"id":"61cd3c9e.6c3f44","type":"debug","z":"16fe8d0f.9e6ec3","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","x":890,"y":120,"wires":[]},{"id":"59d20a02.b9e134","type":"trigger","z":"16fe8d0f.9e6ec3","op1":"fail","op2":"0","op1type":"str","op2type":"str","duration":"-3","extend":false,"units":"s","reset":"","bytopic":"all","name":"","x":620,"y":200,"wires":[["61cd3c9e.6c3f44"]]},{"id":"cfb46a2f.3e4a38","type":"change","z":"16fe8d0f.9e6ec3","name":"","rules":[{"t":"set","p":"reset","pt":"msg","to":"true","tot":"bool"}],"action":"","property":"","from":"","to":"","reg":false,"x":380,"y":200,"wires":[["59d20a02.b9e134"]]}]

[Mark Jacobs]

That is Great. I tried several variation close to that but what I did not know was the msg.reset is a Boolean true/false. Thank you

On Tue, May 1, 2018 at 11:30 PM, 'Simon Walters' via Node-RED <node...@googlegroups.com> wrote:

I think you need to cascade 2 trigger nodes to get the effect you desire

[{"id":"3fec7c71.e08074","type":"inject","z":"16fe8d0f.9e6ec3","name":"","topic":"","payload":"1","payloadType":"num","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":130,"y":120,"wires":[["8655b61c.dd0d28","cfb46a2f.3e4a38"]]},{"id":"8655b61c.dd0d28","type":"trigger","z":"16fe8d0f.9e6ec3","op1":"","op2":"fail","op1type":"nul","op2type":"str","duration":"3","extend":true,"units":"s","reset":"","bytopic":"all","name":"","x":380,"y":120,"wires":[["59d20a02.b9e134"]]},{"id":"61cd3c9e.6c3f44","type":"debug","z":"16fe8d0f.9e6ec3","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","x":890,"y":120,"wires":[]},{"id":"59d20a02.b9e134","type":"trigger","z":"16fe8d0f.9e6ec3","op1":"fail","op2":"0","op1type":"str","op2type":"str","duration":"-3","extend":false,"units":"s","reset":"","bytopic":"all","name":"","x":620,"y":200,"wires":[["61cd3c9e.6c3f44"]]},{"id":"cfb46a2f.3e4a38","type":"change","z":"16fe8d0f.9e6ec3","name":"","rules":[{"t":"set","p":"reset","pt":"msg","to":"true","tot":"bool"}],"action":"","property":"","from":"","to":"","reg":false,"x":380,"y":200,"wires":[["59d20a02.b9e134"]]}]

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