User Manual

18-36 SCPI Command Reference 2400 Series SourceMeter
®
User’s Manual
Description These commands are used to set the upper and lower limits for
LIMIT 2, LIMIT 3, and LIMIT 5 through LIMIT 12 tests. The actual
limit depends on which measurement function is currently selected.
For example, a limit value of 1µ is 1µA for the amps function and 1µV
for the volts function. A limit value is not range sensitive. A limit of 2
for volts is 2V on all measurement ranges.
SOURce2 <NRf> |<NDN>
:CALCulate2:LIMit[1]:COMPliance:SOURce2 <NRf> |<NDN> Specify pattern; LIMIT 1 failure
:CALCulate2:LIMitx:LOWer:SOURce2 <NRf>|<NDN> Specify pattern for grading mode;
lower LIMIT x failure (x = 2, 3, 5-12)
:CALCulate2:LIMitx:UPPer:SOURce2 <NRf>|<NDN> Specify pattern for grading mode;
upper LIMIT x failure (x = 2, 3, 5-12)
NOTE The above commands to set failure patterns for compliance and limits are
invalid for the Model 2401 and will cause undefined header errors.
Parameters <NRf> = 0 to 7 (3-bit) Decimal value
0 to 15 (4-bit) Decimal value
<NDN> = 0 to #b111 (3-bit) Binary value
0 to #b1111 (4-bit) Binary value
0 to #q7 (3-bit) Octal value
0 to #q17 (4-bit) Octal value
0 to #h7 (3-bit) Hexadecimal value
0 to #hF (4-bit) Hexadecimal value
Query :SOURce2? Query source value for specified limit
Description These commands are used to define the digital output fail patterns
for the specified tests (0 to 7, 3-bit; 0 to 15, 4-bit). Note that the fail
patterns for Limits 2, 3, 5-12 apply only to the grading mode.
Tests are performed in the following order:
1. Limit Test 4 (contact option only; see Appendix F).
2. Limit Test 1
3. Limit Test 2
a. Lower Limit 2
b. Upper Limit 2
4. Limit Test x, where x = 3, 5-12 in ascending numerical order.
a. Lower Limit x
b. Upper Limit x
The first failure in the test sequence determines the bit pattern for the
digital output port. Subsequent failures in the test sequence will not
change the defined digital output pattern. Note that the output value
can be specified as a binary, octal, decimal, or hexadecimal value.
Use the following table to determine the parameter value for the
desired decimal digital output pattern. For non-decimal parameters,