Configurable AD Convertor

The Configurable AD Convertor device driver is a AD Converter which is supported by RadiMation^®.

Communication

Multiple communication types can be selected for the configurable AD convertor

Initialisation and Check

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.

Channels

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

The minimum and maximum must be set to calculate the raw AD convertor value to a digital value with a specific type.

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.

With minimum set to 0 and maximum set to 1, the raw value wont be converted, but instead directly used.

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 ";".

The regular expressions can always be tested trough the Validate Expression function.