Configurable AD Convertor

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Revision as of 11:17, 6 October 2016 by Mahe (talk | contribs) (Trigger and Reading)
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The Configurable AD Convertor device driver is a AD Converter which is supported by RadiMation®.

Configurable AD Converter Configuration Window.png

Initialisation and Check

ScreenElementDescription.png Reset The reset code that needs to be send to device. When left blank no command will be send.
ScreenElementDescription.png Init The command that is send to initialize the configured device. When left blank no command will be send.
ScreenElementDescription.png Get Id The command that is send to retrieve the ID of the device. This is used to check if the device is connected. A common used SCPI command is *IDN?. When left blank no command will be send.


Channels

AD convertors can have multiple channels on which AD values could be read. For each AD channel, different commands can be set.

Trigger and Reading

ScreenElementDescription.png Trigger A trigger command can be specified to request a measurement from the device. A common used SCPI is *TRG. When left blank no command will be send.
ScreenElementDescription.png Read Back Different devices return different messages with measurement values. The configurable AD converter only need the numeric value of the measurement message. There for, a regular expressions can be set in the Read Back.

A good regular expression for finding the first number in scientific notation in a text is:

([+-]?[0-9]*\.?[0-9]+([eE][+-]?[0-9]+)?)

For more possibilities see the example section

Minimum and maximum value

Minimum and maximum can be set to limit the measured value. And to calculate the measured value to a specific unit.

ScreenElementDescription.png Minimum value The lowest value that can be measured with this device. The value must be the same as filled in the EUT window.
ScreenElementDescription.png Maximum value The highest value that can be measured with this device. The value must be the same as filled in the EUT window.


Readback example(s)

Received information
Regex
RadiMation Readout
Note
U_L_N 325
(-?[0-9.,Ee-]+)
325
Takes the first number.
I_L1;12.34
;(-?[0-9.,Ee-]+)
12.34
Takes the first number after ";".
THD_U_L1;;14,5
;;(-?[0-9.,Ee-]+)
14.5
Takes the first number after ";;".
AC_FREQ;Channel1;1.23E3
;*;(-?[0-9.,Ee-]+)
1230
Takes the first number after the appearance of a second ";".