How to use the transition of Boolean as trigger 0to1 = > 1impulse 1to0 = pulse > 0

Hello!

I have a HVenable Boolean button that will be used to toggle the output high voltage to a voltage source.

The problem:

I only need set to True to send the command Open HV

and a value of False to send the command Close HV; the Boolean button sends a continuous real values train when it is on and a continuous values f when train off the power.

How can I convert a transition from off to on / F t into one 1 pulse or pulse T

and the transition between on and off / T and F in a single 0 pulse or pulse T.

What instrument converts a transition of T F in a 1 or pulse T

and a transition between T and F in a pulse of 0 (different from the first species of transition)?

In the vi test, such an instrument would be inserted between HVenable button and select;

If true, it will send an open command to visa O 01 CR

If set to False, it sends a command to close O 00 CR.

First of all, do not use continuous operate to make the code run more than once! Place the repetitive code inside a loop. Continuous run is a troubleshooting tool that you want to use (in moderation) during development.

The key to your problem is to use the structure of the event. An event to change the value on the Boolean value HVenable will do exactly what you want.

You don't need to Type Cast and all conversions. The value of the string constants '-' Codes display mode and enter the data you want.

Lynn

Tags: NI Software

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