Agilent Technologies 34420A User Manual page 169

Chapter 4 Remote Interface Reference
The SCPI Status Model
The Questionable Data Register
The questionable data register provides information about the quality of the
meter's measurement results. Overload conditions can be reported in the
questionable data summary bit through the enable register. You must write a
decimal value using the STATus:QUEStionable:ENABle command to set
the enable register mask.
Note: A reading overload condition is always reported in both the
standard event register (bit 3) and the questionable data event register
(bits 0, 1, or 9). However, no error message is recorded in the meter's error
queue.
Bit Definitions — Questionable Data Register
Bit
Voltage Overload
0
1 Not Used
2 Not Used
3 Not Used
Temperature Overload
4
5 Not Used
6 Not Used
7 Not Used
8 Not Used
Ohms Overload
9
10 Not Used
11 Not Used
12 Not Used
13 Not Used
14 Not Used
15 Not Used
Decimal
Definition
Value
1 Range overload on dc volts
2 Always set to 0.
4 Always set to 0.
8 Always set to 0.
16 Range overload on temperature
measurements.
32 Always set to 0.
64 Always set to 0.
128 Always set to 0.
256 Always set to 0.
512 Range overload on 2-wire or 4-wire
Ohms
1024 Always set to 0.
2048 Always set to 0.
4096 Always set to 0.
8192 Always set to 0.
16384 Always set to 0.
32768 Always set to 0.
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