IEEE-488 Reference
5-74
:LSENse? Query polarity of specified line
Short-form formats: :outp:ttl:lsen?
:outp:ttl2:lsen?
:outp:ttl3:lsen?
:outp:ttl4:lsen?
Response message: AHIG or ALOW
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 output
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.
10 OUTPUT 707; “:outp:ttl:lsen alow; lsen?”
20 ENTER 707; A$
30 PRINT A$
40 END
Line 10 Sets the polarity of line #1 to active low.
Line 20 Addresses the 7001 to talk.
Line 30 Displays the polarity of line #1 (ALOW).
Query
command
Description
Programming
example
:OUTPut subsystem
Artisan Scientific - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisan-scientific.com