HP3458A Emulation Mode
H-12
Description
The
NDIG
command programs the number of digits the instrument uses when displaying readings.
Note that there is an implied 1/2 digit, so when you specify n digits, n-1/2 are displayed.
Note
The Model 2002 frequency function is limited to only 4 or 5 digits (NDIG 3 or NDIG4). Values
greater than 4 will be set to 4 with the frequency function.
Example
NDIG 5
Display 5-1/2 digits.
NDIG 8
Display 8-1/2 digits.
NPLC
Purpose
To program the A/D converter integration time in power line cycles.
Format
NPLC <power_line_cycles>
Parameter
<power_line_cycles>
0.01 to 50
Default
0.01
Query
NPLC?
Returns the currently specified integration time in power line cycles.
Description
The
NPLC
command programs the A/D converter integration time in terms of power line cycles. The
programmable range is from 0.01 to 100 power line cycles.
A value of 100 PLC will be adjusted to 10 PLC. Other values above 50 PLC will be adjusted to 50
PLC.
Example
NPLC 1
Program 1 power line cycle integration period.
NPLC 5
Program 5 power line cycle integration period.
NRDGS
Purpose
To program the number of readings per trigger and the trigger event.
Format
NRDGS <count>, <event>
Parameter
<count>
# of readings (1 to 99999)
<event>
<event> parameter
Numeric equivalent
Description
AUTO
1
Initiates readings continuously
EXT
2
Initiates reading on negative transition on the exter-
nal trigger line
TIMER
6
Same as AUTO with interval specified by TIMER
command
Default
count = 1
Query
NRDGS?
Returns two responses separated by a comma: (1) the number of readings per trig-
ger, and (2) the present trigger event.
Summary of Contents for 2002
Page 123: ...Front Panel Operation 2 106...
Page 145: ...IEEE 488 Reference 3 22...
Page 167: ...IEEE 488 Reference 3 44...
Page 284: ...A Specifications A 1...
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