VXi VT1422A 사용자 설명서
144 Programming the VT1422A for Data Acquisition and Control
Status Bit Descriptions
Questionable Data Group
Bit
Bit Value
Event Name
Description
8
256
Lost Calibration
At *RST or Power-on Control Processor has found a checksum error in the
Calibration Constants. Read error(s) with SYST:ERR? query and re-calibrate areas
that lost constants.
Calibration Constants. Read error(s) with SYST:ERR? query and re-calibrate areas
that lost constants.
9
512
Trigger Too Fast
Scan not complete when another trigger event received.
10
1024
FIFO Overflowed
Attempt to store more than 65,024 values in FIFO.
11
2048
Overvoltage
(Detected on Input)
If the input protection jumper has not been cut, the input relays have been opened
and *RST is required to reset the module. Overvoltage will also generate an error.
and *RST is required to reset the module. Overvoltage will also generate an error.
12
4096
VME Memory
Overflow
The number of values taken exceeds VME memory space.
13
8192
Setup Changed
Channel Calibration in doubt because SCP setup may have changed since last
*CAL? or CAL:SETup command. (*RST always sets this bit.)
*CAL? or CAL:SETup command. (*RST always sets this bit.)
Operation Status Group
Bit
Bit Value
Event Name
Description
0
1
Calibrating
Set by CAL:TARE and CAL:SETup. Cleared by CAL:TARE? and CAL:SETup?. Set
while *CAL? executing, then cleared.
while *CAL? executing, then cleared.
4
16
Measuring
Set when instrument INITiated. Cleared when instrument returns to Trigger Idle
State.
State.
8
256
Scan Complete
Set when each pass through a Scan List is completed.
9
512
SCP Trigger
Reserved for future SCPs.
10
1024
FIFO Half Full
FIFO contains at least 32,768 values.
11
2048
Algorithm Interrupt
The interrupt() function was called in an executing algorithm.
Standard Event Group
Bit
Bit Value
Event Name
Description
0
1
Operation Complete
*OPC command executed and instrument has completed all pending operations.
1
2
Request Control
Not used by VT1422A
2
4
Query Error
Attempting to read empty output queue or output data lost.
3
8
Device Dependent Error
A device-dependent error occurred. See Appendix B page 453.
4
16
Execution Error
Parameter out of range or instrument cannot execute a proper command because
it would conflict with another instrument setting.
it would conflict with another instrument setting.
5
32
Command Error
Unrecognized command or improper parameter count or type.
6
64
User Request
Not used by VT1422A.
7
128
Power-On
Power has been applied to the instrument.