HP 53181A Programming Manual page 220

Commands Reference
Measurement Instructions (:CONFigure, :FETCh, :MEASure, :READ)
resolution:
default:
<source_list>
range: (@1), (@2) | (@2), (@1)
default: (@1), (@2)
:MEASure[:SCALar][:VOLTage]:MAXimum? [(@1)]
Measures Voltage Maximum .
<source_list>
range: (@1)
default: (@1)
:MEASure[:SCALar][:VOLTage]:MINimum? [(@1)]
Measures Voltage Minimum .
<source_list>
range: (@1)
default: (@1)
4-62
<resolution> should use a mantissa of 1.0 and be an even
power of 10
value which indicates 4 digits of resolution for the
specified <expected_value>