Front Panel Menu Reference SCPI Command
Select System\Signal\Define.
Select Expression 1 in the dropdown list.
Enter "Delay(CV,1) Or CC Or DigPin1" in the text field.
Program the signal expression.
SYST:SIGN:DEF EXPR1, "Delay(CV,1) Or CC Or DigPin1"
In the following expression, because the delay is ORed with one sub-expression, the maximum number
of remaining available expressions is six.
Front Panel Menu Reference SCPI Command
Select System\Signal\Define.
Select Expression 1 in the dropdown list.
Enter "Delay(CV,1) Or (CC And DigPin1)" in the text field.
Program the signal expression.
SYST:SIGN:DEF EXPR1, "Delay(CV,1) Or (CC And DigPin1)"
To put it another way, if the above three expressions (Examples 5-7) were all created, you would have
only one more expression available for use.
Expression Examples
Example 1 Create a digital signal on pin1 of the digital port that is true whenever the output is in
positive or negative current limit:
Front Panel Menu Reference SCPI Command
Select System\Signal\Define.
Select Expression 1 in the dropdown list.t.
Enter "CL+ Or CL-" in the text field.
You can enter any value from the numeric keypad. For additional characters, use
the up/down navigation keys to enter an alpha character by scrolling through the
selection list that appears when you press the keys. Use the left/right navigation
keys to traverse the text field. Use the backspace key to delete a value. Press Enter
when you are finished.
Select System\IO\DigPort\Pins.
Select pin 1 in the Pin field. In the Function field, selectExpr 1.
Program the signal expression.
SYST:SIGN:DEF EXPR1, "CL+ Or CL-"
Program the digital pin.
DIG:PIN1:FUNC EXPR1
4 Using the Advanced Power System
148 Keysight N6900/N7900 Series Operating and Service Guide
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