National Instruments 370578B-01 Manual Do Utilizador

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Appendix A
Troubleshooting and Common Questions
A-2
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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 
 section of Chapter 2,