Name: Keithley 2002
Brand: Keithley
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IEEE-488 Reference

3-85

3.16 :OUTPut subsystem

The OUTPut subsystem is used to set polarities for the digital output port. Commands in this

subsystem are summarized in Table 3-8.

:LSENse <name>

:OUTPut:TTL[1]:LSENse <name> Set polarity of line #1

:OUTPut:TTL2:LSENse <name> Set polarity of line #2

:OUTPut:TTL3:LSENse <name> Set polarity of line #3

:OUTPut:TTL4:LSENse <name> Set polarity of line #4

<name> = AHIGh Set polarity of speciﬁed line to active high.

ALOW Set polarity of speciﬁed line to active low.

:LSENse? Query polarity of speciﬁed line

These commands are used to set the polarity of the digital output lines. When set for active high

(AHIGh) polarity, the speciﬁed output line is true (ON) when the output level is high. The out-

put line is false (OFF) when the output level is low. When set for active low (ALOW) polarity,

the output line is true (ON) when the output level is low. The output line is false (OFF) when

the output level is high.

The logic levels (true or false) of the digital output lines are set from the SOURce Subsystem

(see paragraph 3.19).

PRINT #1, "output 16; :outp:ttl:lsen alow; lsen?" ' Set line #1 to ALOW

PRINT #1, "enter 16" ' Get response message from

2002

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