IEEE-488 PROGRAMMING
2. This bit will be set if there was an NVRAM error on power up, or when DCL
or SDC was sent over the bus. Calibration constants are stored in NVRAM.
Compliance Overload. Set when the voltage limit (approximately * 12V) of the cur-
rent source has been reached.
Calibration Switch Enabled. Set when the calibration switch is in the enable positon.
MODEL NO.
UNCALIBRATED
263
Oil
COMPLIANCE CALIBRATION
OVERLOAD
SWlTCH ENABLED
Oil O/l
000000<TERM>
Figure 4-10. U2 Data Status Word
PrOgrZItIIIning 1. The instrument
will
transmit the appropriate status word only once each time the
Notes
corresponding U command is transmitted.
2. The bits in the Ul word will latch (1) and remain that way until the Ul word is read.
3.
The programmed terminator (default CR LFJ will be transmitted at the end of each
status word.
4. EOI will be transmitted at the end of the status word unless disabled with the
K command.
5. To make sure that correct status is transmitted, the status word should be re-
quested as soon as possible after the command is transmitted.
6. The complete command string will be ignored if an IDDC, IDDCO or no remote
error occurs. The message “bErr” is displayed when a bus error occurs.
7. Within the command string, only the command(s) causing a number error will
be ignored. The message “nErr” is displayed when a number error occurs.
! Dimension input string.
! Send UO command.
! Obtain UO status from 263.
! Display UO status word.
! Send Ul command.
! Obtain Ul status from 263.
! Display Ul status word.
! Send U2 command.
! Obtain U2 status from 263.
! Display U2 status word.
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