Voltage Pulse to RPM

[moderator1983]

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@Marshman wrote:

Here is the code that I have started.

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Check this modified code.

[Marshman]

I will give this a shot and let you know of my results. Thanks

[Marshman]

I tried it and it did seem to work decently. Although when I got below a certain RPM an error message kept popping up.  see picture.  How can I disable this, there are times when the rpm will be 0 but I want other tasks running within my bigger program.

[Hooovahh]

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@Marshman wrote:

I tried it and it did seem to work decently. Although when I got below a certain RPM an error message kept popping up.  see picture.  How can I disable this, there are times when the rpm will be 0 but I want other tasks running within my bigger program.

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What does 0 RPM look like to a program?  If I rotate one full revolution in an hour is my RPM 0.016?  Or do we just round to 0 and say we are moving too slow?  The program doesn't have a threshold for this.  You need to determine what is too low to measure and handle that appropriatly.  If it works out for you a simple solution might be to just make the RPM have a value of 0 if an error occured.  You can use a case structure or a Select function to use the calculated value or default to 0 if there is an error.

[Marshman]

If I were to set RPM to 0 when an error occurred how would I set up the case structure to do this?

[Hooovahh]

Wire the Error wire to the little question mark on the case structure.