SCPI Conformance Information |
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The following punctuation is not sent with the command string: |
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• Braces ({ }), or curly brackets, identify a selection of choices. Choose | A |
one of the enclosed values. | |
• Vertical bars, or pipes, ( ) can be read as “or” and is used to separate | |
the choices found within the braces. |
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• Angle brackets ( < > ) identify where specific values must be entered |
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for a parameter. For example, in the example at the top of the page, |
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the parameter <current> appears in the command string. To set the |
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current set point to 0.1A, the syntax is CAL:CURR:LEV 0.1. |
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• Square brackets ( [ ] ) identify optional parameters. If an optional |
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parameter is not sent with the command string, a default parameter is |
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sent in its place. |
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Using Minimum and Maximum |
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In the following example, Minimum and Maximum are offered as |
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alternative choices to declaring a specific parameter value. |
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CAL:CURRent:LEVel {<current>MINMAX}
The string CAL:CURR:LEV MIN sets the current calibration level to the minimum model value.
Using Queries
A question mark lets you query the present value for most parameters. For example, to query the current calibration state use:
CAL:SEC:STAT?
You can also use the following to query minimum and maximum allowed values for most parameters:
:VOLT? MIN :VOLT? MAX
Important: If you send two queries, it is best to read and respond to the first response before trying to read the second. Otherwise, you may receive an incomplete first response followed by a complete second response. To avoid this, you can either wait for and read the first response before sending the second query, or send a device clear message before sending the second query.
