13-5
IM 253421-01E
Communication Commands1 (System of Commands before the 488.2-1987 Standard)
13
Query
KH?<terminator>
Example
KH0
Description • Parameter error 12 will occur if “m” is set to an
illegal value.
• While recalling is in progress, execution error
19 will occur.
• Cannot be changed in the harmonic analysis
mode. Execution error 16 will occur.
KV/KV?, KA/KA?, KW/KW?
Sets the scaling constant or queries the
current setting.KV is used for voltage
measurement, KA for current
measurement, and KW for power
measurement.
Syntax
When CM0 is set:
KVn<terminator>
KAn<terminator>
KWn<terminator>
When CM1 is set:
KVm,n<terminator>
KAm,n<terminator>
KWm,n<terminator>
“m” indicates element.
m=
1:
Element 1
“n” indicates scaling constant.
0.001
≤
n
≤
9999.
Query
When CM0 is set:
KV?<terminator>
KA?<terminator>
KW?<terminator>
When CM1 is set:
KV1?<terminator>
KA1?<terminator>
KW1?<terminator>
Example
When CM0 is set:
KV1.000
KA1.000
KW1.000
When CM1 is set:
KV1,1.000
KA1,1.000
KW1,1.000
Description • Parameter error 12 will occur if “m” is set to an
illegal value.
• “n” must be floating-point or integer.
• While recalling or storing is in progress,
execution error 19 will occur.
MN/MN?
Sets the measurement mode for voltage
and current or queries the current
setting.
Syntax
MN m<terminator>
“m1” indicates the measurement mode.
m1= 0:
RMS
1:
V MEAN (MEAN for voltage, RMS
for current)
2:
DC
Query
MN?<terminator>
Example
MN0
Description • Parameter error 12 will occur if “m” is set to an
illegal value.
• Changing of the measurement mode is not
allowed while integration is in progress;
execution error 13 will occur.
• While recalling or storing is in progress,
execution error 19 will occur.
MT/MT?
Sets the computing equation of MATH
function or queries the current setting.
Syntax
MT m<terminator>
m indicates the computing equation.
m=
1:
Crest factor of the voltage input
waveform of input element 1
4:
Crest factor of the current input
waveform of input element 1
7:
display A + display B
8:
display A – display B
9:
display A X display B
10: display A / display B
11: display A / (display B)
2
12: (display A)
2
/ display B
13: Average power during integration
Query
MT?<terminator>
Example
MT1
Description
The value for the average power (m=13) is
displayed only when the integration is in progress.
OA/OA?
Sets D/A output items or queries the
current settings. Up to 4 measured data
can be selected and output as analog
signal from the D/A converter.
Syntax
OA m1,m2,m3<terminator>
“m1” indicates D/A output channel, and
must be set within the following range.
1
≤
m1
≤
4
“m2” indicates output item no.
m2= 0:No output
1:Voltage (V)
2:Current (A)
3:Power (W)
4:Reactive power (var)
5:Apparent power (VA)
6:Power factor (PF)
7:Input voltage frequency (V Hz)
8:Input current frequency (A Hz)
9:Watt-hour (Wh)
10:Ampere-hour (Ah)
11:Phase angle (deg)
12:Peak voltage value (Vpk)*
13:Peak current value (Apk)*
14:Computation result (MATH)*
24:Positive watt-hour (Wh+)
25:Negative watt-hour (Wh–)
26:Positive ampere-hour (Ah+)
27:Negative ampere-hour (Ah–)
“m3” indicates element.
m=
1:Element 1
13.1 Commands
