6253 DC Voltage Current Source/Monitor Operation Manual
4.2.9 Calculation Functions
4-59
4.2.9.3 Comparator Calculation
1. Calculation expression
The result of the comparator calculation is judged as shown below:
Du < X ...................... HI
D
LXDu .............. GO
X < D
L ....................... LO
• When the measured value is over range, positive measured data (X > 0) is judged as HI and
negative one (X < 0) is judged as LO.
• When the NULL calculation is ON, the comparator calculation is executed comparing with the
NULL calculation result.
If the NULL calculation result data is over range, positive measured data is judged as HI and
negative one is judged as LO in the same way.
• Because the internal measurement and calculation resolutions are smaller than the display
resolution, the displayed data may be judged as HI or LO when X = D
L or X = Du respectively.
2. Calculation result output
The calculation result is output to the output data header and the device event register in the status
register. Also, selected HI, GO, and LO signals are output with negative pulses to the COMPLETE
OUT output terminal on the rear panel.
3. Operation
•“CMP” is displayed when the comparator calculation is ON. (HI), (GO), or (LO)
indicator is displayed depending on the calculation result of HI, GO, or LO.
• The setting range for the upper and lower limits is between 0 and 999.9999E + 24.
• The comparator calculation is turned OFF by executing the *RST command.
• Changing the measurement function does not turn OFF this calculation.
• When the comparator calculation result meets with its buzzer condition, the buzzer sounds.
Select the parameters, 13) System and 2) Compare Buzzer on the menu screen to set the buzzer
condition.
X
HI
GO
LO
Du
D
L
X: Measured value
Du: Upper limit value
D
L
: Lower limit value
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