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© National Instruments Corporation B-1 NI-488.2 User Manual for Windows
B
Status Word Conditions
This appendix gives a detailed description of the conditions reported in the
status word,
ibsta
.
For information about how to use
ibsta
in your application program, refer
to the NI-488.2 online help. For instructions on accessing the online help,
refer to the Using the NI-488.2 Documentation section in About This
Manual.
Each bit in
ibsta
can be set for device calls (dev), board calls (brd), or both
(dev, brd). Table B-1 shows the status word layout.
Table B-1.
Status Word Layout
Mnemonic Bit Position Hex Value Type Description
ERR 15 8000 dev, brd NI-488.2 error
TIMO 14 4000 dev, brd Time limit exceeded
END 13 2000 dev, brd END or EOS detected
SRQI 12 1000 brd SRQ interrupt received
RQS 11 800 dev Device requesting service
CMPL 8 100 dev, brd I/O completed
LOK 7 80 brd Lockout State
REM 6 40 brd Remote State
CIC 5 20 brd Controller-In-Charge
AT N 4 10 brd Attention is asserted
TACS 3 8 brd Talker
LACS 2 4 brd Listener
DTAS 1 2 brd Device Trigger State
DCAS 0 1 brd Device Clear State