Programming
3
Keysight 53147A/148A/149A Operating and Programming Guide
185
shows the model that these register groups follow.
A detailed description of each bit in the Operation Status Register follows:
–
Bits 0-3
are not used.
–
Bit 4 (Measuring)
is a condition bit which indicates the instrument is actively
measuring.
The condition bit is TRUE (one) during a measurement and FALSE (zero)
otherwise.
–
Bits 5 (Waiting for Trigger)
The condition bit is
TRUE
(one) when the instrument is in the
HOLD
mode
(
INIT:CONT OFF
), and it has not been triggered.
–
Bits 6-8
are not used.
–
Bit 9 (Using Internal Reference)
is a condition bit which indicates the
instrument is using the internal reference.
The condition bit is TRUE (one) when the instrument is using the internal
reference. The condition bit is FALSE (zero) while the instrument is using the
external reference. The setting of this bit is not affected by the setting of the REF
OSC option in the user settings menu.
–
Bit 10
is not used.
–
Bit 11 (Acquiring)
indicates that the instrument is searching for a signal.
The condition bit is high while the instrument is searching. It goes low when a
search is complete, whether or not a signal was found. If a signal was not
found, the bit goes high again after a delay (when the next search begins).
–
Bit 12 (Locked)
a value of 1 indicates that the instrument has found a
measurable signal and has locked onto it.
–
Bits 13-15
are not used.
Содержание 53147A
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