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11-18
Figure 11-7
Questionable event register
OR
To
Questionable
Summary Bit of
Status (QSB)
Byte Register
Condition registers
As
Figure 11-1
a condition register. A condition register is a real-time, read-only register that constantly
updates to reflect the present operating conditions of the instrument. For example, while
the Model 2790 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
ing registers, see
Table 11-3
Condition register commands
STATus:OPERation:CONDition?
STATus:MEASurement:CONDition? Read Measurement Condition Register.
STATus:QUEStionable:CONDition? Read Questionable Condition Register.
Model 2790 SourceMeter
Warn
(B15)
(B14)
(B13 - B11) (B10)
0
Warn
(B15)
(B14)
(B13 - B11) (B10)
0
&
&
0
Warn
(B15)
(B14)
(B13 - B11) (B10)
Warn = Command Warning
Int2 = Slot 2 Interlock Open
Int1 = Slot 1 Interlock Open
Cal = Calibration Summary
Temp = Temperature Summary
shows, each status register set (except the Standard Event Register set) has
"Reading registers," page
Command
®
Int2 Int1
Cal
(B9)
(B8)
(B7 - B5)
Int2 Int1
Cal
(B9)
(B8)
(B7 - B5)
&
&
&
Int2 Int1
Cal
(B9)
(B8)
(B7 - B5)
& = Logical AND
OR = Logical OR
11-6.
Description
Read Operation Condition Register.
Switch System Reference Manual
Questionable
Temp
Condition
(B4)
(B3 - B0)
Register
Questionable
Temp
Event
Register
(B4)
(B3 - B0)
&
Questionable
Temp
Event Enable
Register
(B4)
(B3 - B0)
Table
11-3. For details on read-
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