Appendix C
Troubleshooting and Common Questions
C-2
ni.com
2.
Select
Start»Programs»National Instruments»NI-FBUS»
Utilities»Interface Configuration Utility
.
3.
Right-click the USB-8486 to enable it.
•
If you want to use other interfaces in the system without this
USB-8486, complete the following steps.
1.
Select
Start»Programs»National Instruments»NI-FBUS»
Utilities»Interface Configuration Utility
.
2.
Right-click the USB-8486 to delete it.
VCR_FULL_ERROR
Delete the card from the Interface Configuration utility, then reinstall.
NIFB Problems
When using the USB-8486, Nifb returns an error message stating that
the board cannot be found.
•
Select
Start»Programs»National
Instruments»NI-FBUS»Utilities»Interface Configuration Utility
.
Make sure your card appears under the list of interfaces.
•
Make sure the kernel-mode driver is started. To start the driver, select
Start»Programs»National Instruments»NI-FBUS»NI-FBUS
Communications Manager
. Click the
Start
button. To avoid manual
startup in the future, click
Startup
and select
Automatic
.
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 fine.
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. You also can temporarily give the interface
a visitor address to troubleshoot this problem.
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 card. Restart the NIFB process. If it runs successfully, there is
probably a Fieldbus network address conflict. If this does not solve the
problem, you can try to change the card’s address. In the Interface
Configuration utility, select the port and click
Edit
. Make sure that the