Querying parameter settings
You can query the value of most parameters by adding a question mark (?) to the command. For
example, the following command sets the output current to 5 A:
CURR 5
You can query the value by executing:
CURR?
You can also query the maximum or minimum value allowed with the present function as follows:
CURR? MAX CURR? MIN
If you send two query commands without reading the response from the first, and then attempt to
read the second response, you may receive some data from the first response followed by the com-
plete second response. To avoid this, do not send a query command without reading the response.
When you cannot avoid this situation, send a device clear before sending the second query command.
SCPI command terminators
A command string sent to the power supply must terminate with a <new line> character. The IEEE- 488
EOI (end-or-identify) message is interpreted as a <new line> character and can be used to terminate a
command string in place of a <new line> character. A <carriage return> followed by a <new line> is also
accepted. Command string termination will always reset the current SCPI command path to the root
level. The <new line> character has the ASCII decimal code of 10.
IEEE-488.2 common commands
The IEEE- 488.2 standard defines a set of common commands that perform functions like reset, self-
test, and status operations. Common commands always begin with an asterisk (*), are four to five
characters in length, and may include one or more parameters. The command keyword is separated
from the first parameter by a blank space. Use a semicolon (;) to separate multiple commands as shown
below:
*RST; *CLS; *ESE 32; *OPC?
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