Difference between revisions of "RadiMation Application Note 114"
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== 1.1 Specify the communication type == | == 1.1 Specify the communication type == | ||
| − | First the communication type must be configured | + | First the communication type must be configured. |
| + | Multiple communication types can be selected. | ||
<div style="text-align: left; direction: ltr; margin-left: 2em;">[[File:ConfigureCommunication.png]]</div> | <div style="text-align: left; direction: ltr; margin-left: 2em;">[[File:ConfigureCommunication.png]]</div> | ||
| Line 33: | Line 34: | ||
{{ScreenElementDescriptionStart}} | {{ScreenElementDescriptionStart}} | ||
{{ScreenElementDescription|Reset|The reset code that needs to be send to device. When left blank no command will be send.}} | {{ScreenElementDescription|Reset|The reset code that needs to be send to device. When left blank no command will be send.}} | ||
| − | {{ScreenElementDescription|Init|The | + | {{ScreenElementDescription|Init|The command that is send to initialize the configured device. When left blank no command will be send.}} |
| − | {{ScreenElementDescription|Get Id|The | + | {{ScreenElementDescription|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.}} |
| + | {{ScreenElementDescription|Returned ID|The identifier is used to check if the correct device driver is selected and the device is connected. Leaving this blank will skip the device check.}} | ||
| + | {{ScreenElementDescription|Deinit|Specifies the command that is send when the device is no longer in use. Leaving this blank will keep the device in its last state after controlling it.}} | ||
| + | |||
| + | |||
| + | A checkmark can be enabled so RadiMation will wait for all the commands to complete. This is done by sending [[SCPI]] command *OPC? to the device. | ||
| + | |||
{{ScreenElementDescriptionEnd}} | {{ScreenElementDescriptionEnd}} | ||
| + | == 1.3 Configure the data readout of the device == | ||
| − | + | AD convertors can have multiple channels on which AD values could be read. | |
| + | For each AD channel, individual commands can be set. | ||
| + | ==== Trigger and Reading ==== | ||
{{ScreenElementDescription|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|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.}} | ||
| Line 60: | Line 70: | ||
| − | == 1. | + | == 1.5 Examples == |
{| class="Regex example table" | {| class="Regex example table" | ||
Revision as of 12:54, 6 October 2016
How to measure data from the EUT using the Configurable AD Convertor device driver
This Application Note explains how a configurable AD convertor can be used to monitor an EUT. With the AD convertor, any type of signal can be monitored and plotted within RadiMation during a test.
- First the AD convertor must be configured so values can be read within RadiMation.
- Second the value must be plotted using the correct unit types.
1 Configuring the AD convertor
1.1 Specify the communication type
First the communication type must be configured. Multiple communication types can be selected.
1.2 Configure the initialization of the device
 Reset
|
The reset code that needs to be send to device. When left blank no command will be send. |
| Init
|
The command that is send to initialize the configured device. When left blank no command will be send. |
| 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. |
| Returned ID
|
The identifier is used to check if the correct device driver is selected and the device is connected. Leaving this blank will skip the device check. |
| Deinit
|
Specifies the command that is send when the device is no longer in use. Leaving this blank will keep the device in its last state after controlling it. |
A checkmark can be enabled so RadiMation will wait for all the commands to complete. This is done by sending SCPI command *OPC? to the device.
1.3 Configure the data readout of the device
AD convertors can have multiple channels on which AD values could be read. For each AD channel, individual commands can be set.
Trigger and Reading
| 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. |
| Read Back
|
Different devices return different messages with measurement values. The configurable AD convertor 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.
| Minimum value
|
The lowest value that can be measured with this device. The value must be the same as filled in the EUT window. |
| Maximum value
|
The highest value that can be measured with this device. The value must be the same as filled in the EUT window. |
1.5 Examples
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 ";".
|
Read backs can always be tested trough the "Validate Expression tool"
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