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Create a custom flash timer which would allow users to control the inputs below:
- On time
- Off time
- Pause time
- Total time
- Number of Flashing Before Pausing
A sample function block and the output can be seen below:
fbCustomFlash(
bStart:= bStart,
tOnDuration:= T#2s,
tOffDuration:= T#1s,
tPauseDuration:= T#4s,
tTotalDuration:= T#20s,
nBlinkCountBeforePause:= 3,
bOut=> bPWM);
Sample output for the values below:
- On time = 1s
- Off time = 500ms
- Pause time = 3s
- Total time = 35s
- Number of Flashing Before Pausing = 4
Happy coding!
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@alex Thanks for sharing! Could you plot your output signal using these values :
- On time = 1s
- Off time = 500ms
- Pause time = 3s
- Total time = 35s
- Number of Flashing Before Pausing = 4
Here it is,
Here is my Custom Flash Timer
https://github.com/evanhixenbaugh/TwinCAT-Projects/blob/main/CustomFlash.tnzip
The video is a bit messy but it functions correctly I believe
Let me know of any errors or criticism.
-Evan H.
@ehixenbaugh Nice! Maybe instead of having one FB, you could extend the function block from this example.
Could you also take a screenshot and share your output signal? It was a bit difficult to understand from the video that if the output becomes off when the total time has been reached.
The output signal for the values in the challenge:
Here is are my images. I had an error in my first post (I forgot to turn off the Function Block when the input signal is not active by having b_InputSignal be a condition for the IF statement in the FB), that is why in my video there is a continuous loop of pulsed signals.
In my PWM, the output signal turns off immediately when the total duration timer is has reached PT. That is why there is no signal cutoff and I have this reflected in the live snapshot of my function block.
