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Model 6220/6221 Reference Manual
Status Structure 11-17
Return to
Figure 11-7
Questionable event status
Condition registers
shows, each status register set (except the standard event register
set) has a condition register. A condition register is a real-time, read-only register
that continuously updates to reflect the present operating conditions of the instru-
ment. For example, while the Model 622x is in the idle state, bit B10 (Idle) of the
operation condition register will be set. When the instrument is taken out of idle,
bit B10 clears.
The commands to read the condition registers are listed in
. For details
on reading registers, see
“Reading registers,” on page 11-6
.
Table 11-4
Common and SCPI commands — condition registers
Command
Description
STATus
:OPERation:CONDition?
:MEASurement:CONDition?
:QUEStionable:CONDition?
STATus subsystem:
Read operation condition register.
Read measurement condition register.
Read questionable condition register.
(B15 - B9)
(B8)
OR
Questionable
Condition
Register
Questionable
Event Enable
Register
Cal = Questionable Calibration
Power = Questionable Power
& = Logical AND
OR = Logical OR
(B15 - B9)
(B8)
Cal
Questionable
Event
Register
(B15 - B9)
(B8)
To Questionable
Summary Bit of
Status (QSB)
Byte Register
(B7 - B5)
(B7 - B5)
(B7 - B5)
Cal
Cal
(B4)
Power
(B4)
Power
(B3 - B0)
(B3 - B0)
(B3 - B0)
(B4)
Power
&
&
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