Configurable AD Convertor: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
|||
Line 12: | Line 12: | ||
{{ScreenElementDescription|Read Back|In the read back the returned information is defined. This is different for every type of machine there for {{radimation}} used [[regular expressions]] to understand the format. A good expression for finding the first number(s) in a textstring is: | {{ScreenElementDescription|Read Back|In the read back the returned information is defined. This is different for every type of machine there for {{radimation}} used [[regular expressions]] to understand the format. A good expression for finding the first number(s) in a textstring is: | ||
'''([0-9]*\.?[0-9]+([eE]?-?[0-9]+)?)''' | '''([+-]?[0-9]*\.?[0-9]+([eE]?-?[0-9]+)?)''' | ||
For more possibilities see the example section | For more possibilities see the example section |
Revision as of 11:26, 29 April 2011
Reset | The reset code that needs to be send to device. When left blank no command will be send. |
Init | The Init code that needs to be send to device. When left blank no command will be send. |
Get Id | The code that needs to be send to device to get the identification back. A common used SCPI command is *IDN?. When left blank no command will be send. |
Channel[edit]
Trigger and Reading |
|
Trigger and Reading |
|
readback example(s)[edit]
Second Value[edit]
There are situations where the expression ([0-9]*\.?[0-9]+([eE]?-?[0-9]+)?) is not giving the wanted result. For example "C1:PAVA RMS,16.4E-3 V,OK", when using the expression the result will be 1 instead of 16.4E-3. In the given situation the expression ,([0-9]*\.?[0-9]+([eE]?-?[0-9]+)?) will give the correct result. Why does this give the correct answer? When searching for the correct value there is a search for ",[value]" instead of "[value]". Why is the "," not in the ()? Because we want RadiMation® to find the value not the value with a "," in front of it. By leaving it outside the "([expression])" it does search for it but it is not part of the decoding of the value.