# SCPI command responce - Evaluating result

**URL:** <https://forum.opentap.io/t/scpi-command-responce-evaluating-result/2020>\
**Category:** Technical\
**Tags:** faq\
**Created:** [June 12, 2024, 3:31pm UTC](https://forum.opentap.io/t/scpi-command-responce-evaluating-result/2020 "2024-06-12T15:31:11Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![b.staal](https://avatars.discourse-cdn.com/v4/letter/b/838e76/32.png) [@b.staal](https://forum.opentap.io/u/b.staal)\
**Post date:** [June 12, 2024, 3:31pm UTC](https://forum.opentap.io/t/scpi-command-responce-evaluating-result/2020/1 "2024-06-12T15:31:12Z")

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Hi There.

I have a generic SCPI Oscilloscope I’m trying to figure out how to use in my test.  
Using the “Basic Step → SCPI” function in openTap (With keysight GUI) I can send the SCPI message to the scope and I get a nice reply back : MEAN,1.02E+01

Since i asked for the Mean measurement on channel 1 and I have a 10V DC input connected to it, then the SCPI reply looks ok.  
My question is how can I set a verdict on this result or more accurate a lower and upper limit check ?

Hope someone can help me figure this out.

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**Author:** ![marc\_vd\_klooster](https://avatars.discourse-cdn.com/v4/letter/m/9fc348/32.png) [@marc\_vd\_klooster](https://forum.opentap.io/u/marc_vd_klooster)\
**Post date:** [August 28, 2024, 10:18am UTC](https://forum.opentap.io/t/scpi-command-responce-evaluating-result/2020/2 "2024-08-28T10:18:41Z")

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Hey,

For our implementation we made a separate validation test step. Since, for example, a simple min-max validation is not always what you are looking for.  
In general at our place chose not to do validation of values in measuring test steps.

I hope it helps a bit.