mode: 0
1
2
Re marks: Rela tive mode per mits any meas ure ment re sult to be com pared in dB or
per cent to a ref er ence value. Rela tive mode can be en abled us ing the
cur rent power read ing (RL1) or the pre vi ous ref er ence level (RL2). Suc -
ces sive meas ure ments are dis played rela tive to this ref er ence value. RL0
dis ables rela tive mode.
RM Range hold set
Syn tax: RM<val>EN
val: 0 to 5
Re marks: Set the range to <val> and then sets range hold. A value of 0 se lects
Auto Rang ing, where the range will change to take the best meas ure -
ment auto mati cally.
Ex am ple: To set the range to 3:
RM3EN
Re lated
Com mands: RH
RV Serv ice re quest mask value
Syn tax: RV
Re marks: Read serv ice re quest mask value. The re turned string for mat is: <in te -
ger value>
Con vert ing the in te ger value into an 8- bit bi nary number, each bit cor re -
sponds to the Serv ice Re quest mask bits.
SM Status Mes sage
Syn tax: SM
Re marks: Re turns the status mes sage in the for mat:
AAaaBBCCccDDddEF GHIJKLM NOP<cr><lf>
where:
AA: meas ure ment er ror code
aa: en try er ror code
BB: op er at ing mode
6-128 ML2400A OM
HP 438A EMULATION COMMANDS GPIB OPERATION
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