Section 14: SCPI command reference Model 6517B Electrometer Reference Manual14-40 6517B-901-01 Rev. C / August 2015:SOURce This command is used to specify the upper and lower LIMIT 1 and LIMIT 2 failure patterns.Usage:CALCulate3:LIMit[1]:UPPer:SOURce :CALCulate3:LIMit[1]:LOWer:SOURce :CALCulate3:LIMit2:UPPer:SOURce :CALCulate3:LIMit2:LOWer:SOURce :SOURce? 0 to 15: Specify digital pattern for output portThese commands are used to specify which line(s) of the digital output port goes true when a limittest failure occurs. The first failure in the test sequence determines the digital output pattern.Subsequent failures in the test sequence does not change the digital output pattern on the outputport. Each output line is assigned a decimal weight as follows:Digital Output Decimal WeightLine #1 1Line #2 2Line #3 4Line #4 8The parameter value for the digital pattern is determined by adding the decimal weights of the desiredoutput lines. For example, if you want output lines #2 and #3 to go true when the upper limit of LIMIT1 is the first failure in the test sequence, 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.Polarity is programmed from the OUTPut subsystem.Note that when the binning strobe is enabled, output line #4 is not considered to be part of the digitaloutput pattern. The binning strobe uses line #4. With the binning strobe enabled, parameters 8through 15 are treated the same as parameters 0 through 7.Also seeBSTRobe:STATe (on page 14-44)
