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National Instruments Corporation
B-1
Appendix
B
Troubleshooting and
Common Questions
This appendix describes how to troubleshoot problems and answers
some common questions.
Troubleshooting EDVR Error Conditions
In some cases, calls to NI-488 functions or NI-488.2 routines may return
with the ERR bit set in
ibsta
and the value EDVR in
iberr
. The value
stored in
ibcntl
is useful in troubleshooting the error condition.
EDVR Error Condition with ibcntl Set to 0xE028002C (–534249428)
If a call is made with a board number that is within the range of allowed
board numbers (typically 0 to 3), but which has not been assigned to a
GPIB interface, an EDVR error condition occurs with
ibcntl
set to
0xE028002C. You can assign a board number to a GPIB interface by
configuring the GPIB software and selecting an interface name. For
information about how to configure the GPIB software, refer to the
.
EDVR Error Condition with ibcntl Set to 0xE0140025 (–535560155)
If a call is made with a board number that is not within the range of
allowed board numbers (typically 0 to 3), an EDVR error condition
occurs with
ibcntl
set to 0xE0140025.
EDVR Error Condition with ibcntl Set to 0xE0140035 (–535560139)
If a call is made with a device name that is not listed in the logical
device templates that are part of the GPIB Configuration utility, an
EDVR error condition occurs with
ibcntl
set to 0xE0140035.