7451A/7461A/7461P Digital Multimeter Operation Manual
6.7.3 ADC Command Reference
6-23
Measurement DCV-Bch
measurement mode
* Valid only in the
DCV-Bch func-
tion (F12)
SDV0 HI-COM measurement
SDV1 HI-LO measurement
SDV2 RATIO measurement
SDV? Reply: One of SDV0 to SDV2
Invalid function INH?n Reads the invalid state of the function.
n: 1 (DC voltage measurement) to 50 (Frequency
measurement)
Reply 0: Valid state of the function selection
1: Invalid state of the function selection
Trigger *TRG Trigger command
Measurement data
memory
ST0 Store: OFF
ST1 Store: ON
ST? Reply: ST0 or ST1
IRDn, m Readout range setting
n, m: 0 to 9999 (7451A/61A)
0 to 19999 (7461P)
• Parameters cannot be omitted.
(0, 0)
IRO? Data reading
Reply: See Section 6.7.2, “Output Data Format.”
IRPO? Number of measurement results readings
Reply: IRPOdddd (7451A/61A)
IRPOddddd (7461P)
IRNO? Data range reading
Reply: IRNOdddd, dddd (7451A/61A)
IRNO
ddddd,
ddddd (7461P)
No data: IRNO0000, -001 (7451A/61A)
IRNO+00000, -00001 (7461P)
ICL Measurement data memory initialization
Trigger system Start INI Leaves the IDLE state.
Continue INIC0 CONTINUOUS OFF
INIC1 CONTINUOUS ON
INIC? Reply: INIC0 or INIC1
Trigger abort ABO Moves to the IDLE state.
Trigger source
selection
TRS0 IMMEDIATE
TRS1 MANUAL
TRS2 EXTERNAL
TRS3 BUS
TRS4 LEVEL
TRS5 DELTA
TRS? Reply: One of TRS0 to TRS5
Item Command Description Initial value
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