Keithley 2001 Operator's Manual page 231

Parameter
Format
Defaults
Query
Description
Programming example
2001-900-01 Rev. K / August 2010
:PASS:SOURce <NRf>
:CALCulate3:PASS:SOURce <NRf>
<NRf> = 0 to 15
:calc3:pass:sour <NRf>
Power-up
*RST
:SYSTem:PRESet
:SOURce? Query programmed source value
Short-form format: :calc3:pass:sour?
Response message: 0 to 15
This command is used to specify which line(s) of the Digital Output Port will go true when there are no
failures in the limit tests.
Each output line is assigned a decimal weight as follows:
Digital Output Decimal Weight
Line #1
Line #2
Line #3
Line #4
The parameter value for the digital pattern is determined by adding the decimal weights of the desired
output lines. For example, if you want output lines #2 and #3 to go true when all enabled limit tests pass,
use a parameter value of 6 (2+4).
The actual true state (high or low) of each Digital Output line depends on its programmed polarity. If
programmed for active-high polarity, the output line will go high (true) when all enabled limit tests pass.
If programmed for active-low polarity, the output line will go low (true) when all enabled limit tests pass.
Polarity is programmed from the Output subsystem (see
Note that when the binning strobe is enabled (see :BSTRobe command path), output line #4 is not con-
sidered to be part of the digital output pattern. The binning strobe uses line #4. With the strobe enabled,
parameter values 8 through 15 are treated the same as parameters 0 through 7.
10 OUTPUT 716; ":calc3:pass:sour 3; sour?"
20 ENTER 716; A$
30 PRINT A$
40 END
Line 10 Two commands in this program message; the first specifies output line #3 to go true if all en-
abled limits pass, and the second queries the source value.
Line 20 Addresses the Model 2001 to talk.
Line 30 Displays the source value (4).
Specify "pass" pattern
Specify digital pattern for output port
Saved power-on setup
0
0
1
2
4
8
paragraph 4.17).
IEEE-488 Reference
4-73