IEEE-488 Reference
3-69
:CLEar commands
[:IMMediate]
:CALCulate3:LIMit[1]:CLEar[:IMMediate]
Clear LIMIT 1 test failure
:CALCulate3:LIMit2:CLEar[:IMMediate]
Clear LIMIT 2 test failure
Description
These action commands are used to clear the fail indication of LIMIT 1 and LIMIT 2 tests. Note
that a failure is also cleared when the limit test is disabled (:STATe OFF).
:AUTO <b>
:CALCulate3:LIMit[1]:CLEar:AUTO <b>
Control auto-clear; LIMIT 1
:CALCulate3:LIMit2:CLEar:AUTO <b>
Control auto-clear; LIMIT 2
Parameters
<b> = 1 or ON
Enable auto-clear for limit failure
0 or OFF
Disable auto-clear for limit failure
Query
:AUTO?
Query state of auto clear
Description
With auto-clear enabled, the fail indication of a limit test clears when instrument operation en-
ters the idle state. With auto-clear disabled, the fail indication will remain until it is cleared by
the :CLEar[:IMMediate] command.
:PASS:SOURce <NRf>
:CALCulate3:PASS:SOURce <NRf>
Specify "pass" pattern
Parameters
<NRf> = 0 to 15
Specify digital pattern for output port
Query
:SOURce?
Query programmed source value
Description
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
1
Line #2
2
Line #3
4
Line #4
8
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 polar-
ity. Polarity is programmed from the OUTPut Subsystem (see paragraph 3.17).
Note that when the binning strobe is enabled (see :BSTRobe command path), output line #4 is
not considered 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.
Содержание 6517A
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