How do I clear a string entry at the end of a measurement?

[PaulD.]

I am using the string entry as input from a barcode scanner which is reading Alpha-numeric serial numbers. The string is compared to to verify the serial number is correct. This output starts a subvi that is performing the measurement.

[Labviewguru]

What is your question? Please be more detailed.

[PaulD.]

I have a string constant as a control that the operator will use via a keyboard wedge barcode scanner to read a serial number from the UIT. This string is then compared using a string subset which will produe a true(displays S/N as UIT) or false (incorrect S/N). The true output also is used to start a subVi which is performing flow and pressure measurements. At the completion (Pass Only)of the flow/pressure test, I would like the the string contant display to clear. Thanx for your help!

[Ben]

Guessing now.

How about using a local to write an empty string to the indicator just before you do the read from the barcode scanner?

Is this what you need?
Else, please elaborate.

Ben

[PaulD.]

Ben,
This morning I added a better explanation (I hope) of how I have structured my vi. It may help you understand what I am trying to achieve or it may change your comment. I will try your suggestion. thanx.