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Appendix A Troubleshooting and Common Questions
HSE Linking Device and NI-FBUS Software A-2 ni.com
• Select Start»Programs»National Instruments»NI-FBUS»
Interface Configuration Utility. Make sure your HSE linking
device appears under the list of interfaces.
• Make sure your HSE linking device is online.
When a Fieldbus device is connected to the bus, the NIFB process often
hangs when the title bar reads Waiting for Startup Completion. If I
disconnect the cables, it starts properly.
This is probably due to a device address conflict. In the NI-FBUS Interface
Configuration Utility, make sure that the interface is not at the same address
as anything else on the link.
The NIFB process hangs, does not start up, or never shows that it is
running.
• The Fieldbus network address is not unique. Remove the cable from
the HSE Linking device. Restart the NIFB process. If it runs
successfully, there is probably a Fieldbus network address conflict.
If you have FP-3000 network modules on the bank, powering them off
and then back on will cause them to look on the bus for available
addresses and change addresses if necessary.
• Check for multiple copies of
nifb.dll on the machine. If multiple
copies are found, NI-FBUS was incorrectly re-installed. Uninstall
NI-FBUS, search for any remaining copies of
nifb.dll, delete them,
then reinstall the software.
• Check how many interface boards are showing up in the Interface
Configuration Utility. Make sure that this matches the number of
boards in the system. Also check that the number of ports match the
physical hardware (one port versus two port boards).
Interface Configuration Problems
When using the NI-FBUS Interface Configuration Utility on a
Windows 2000/NT machine, the error message
utility could not
access or locate the registry
appears.
• Make sure you are logged in to Windows with Administrator
privileges.
• Your registry entries for NI-FBUS may have been deleted or corrupted.
Uninstall the NI-FBUS software, then reinstall the software as
described in the Installing the Software section of Chapter 2,
Installation and Configuration.