Keysight M8194A - Questionable Data Register Command Subsystem

116 Keysight M8194A 120 GSa/s Arbitrary Waveform Generator User Guide
4 Remote Programming
Questionable Data Register Command Subsystem
The Questionable Data register group provides information about the
quality or integrity of the instrument. Any or all of these conditions can be
reported to the Questionable Data summary bit through the enable
register.
Table 14 Questionable data register
Bit Number Decimal Value Definition
0 Voltage warning 1 Output has been switched off (to protect itself)
1 Not used 2 Returns “0”
2 Not used 4 Returns “0”
3 Not used 8 Returns “0”
4 Not used 16 Returns “0”
5 Frequency warning 32 Output signal is invalid, because of an instable or
missing external reference clock.
6 Not used 64 Returns “0”
7 USB disconnected 128 USB module connection state
8 Not used 256 Returns “0”
9 Not used 512 Returns “0”
10 Not used 1024 Returns “0”
11 Not used 2048 Returns “0”
12 Not used 4096 Returns “0”
13 Not used 8192 Returns “0”
14 Not used 16384 Returns “0”
15 Not used 32768 Returns “0”