National Instruments GPIB-ENET/100 User Manual
Page 47
Appendix B
Troubleshooting and Common Questions
© National Instruments Corporation
B-5
When should I use IBIC 488.2?
You can use IBIC 488.2 to practice communication with your instrument,
troubleshoot problems, and develop your application program. For more
information about IBIC 488.2, refer to Chapter 4, Interface Bus Interactive
Control Utility, in the NI-488.2 User Manual for MacOS.
How do I use an NI-488.2 language interface?
For information about using NI-488.2 language interfaces, refer to the
NI-488.2 User Manual for MacOS.
My I/O worked with a board interface, but it times out when I use the
GPIB-ENET/100 interface. What should I do?
Network communication is slower than straight cable communication.
You might need to raise the Timeout value using the NI-488 Config utility.
Refer to Chapter 4,
, for more information.
How do I communicate with my instrument over the GPIB?
Refer to the documentation that came from the instrument manufacturer.
The command sequences you use are totally dependent on the specific
instrument. The documentation for each instrument should include the
GPIB commands you need to communicate with it. In most cases, NI-488
device-level calls are sufficient for communicating with instruments. Refer
to Chapter 2, Developing Your Application, in the NI-488.2 User Manual
for MacOS, for more information.
How should I check for errors in my GPIB application?
Examine the value of
ibsta
after each NI-488 or NI-488.2 call. If a call
fails, the ERR bit of
ibsta
is set and an error code is stored in
iberr
.
For more information about global status variables, refer to Chapter 2,
Developing Your Application, in the NI-488.2 User Manual for MacOS.