Appendix C
Troubleshooting and Common Questions
C-6
ni.com
NI-FBUS uses only the standard dictionary (
nifb.dct
) and you will
be unable to use any manufacturer-supplied functionality.
These parameters can be read from the device resource block.
The following procedure will help you troubleshoot a
DD_SIZE_MISMATCH_ERROR
by finding out if there is a device description
available on your computer that matches what your device expects.
Complete the following steps to use the NI-FBUS Dialog utility to check
device description files:
1.
Start the NIFB process. Wait until the process has finished initializing.
2.
Select
Start»Programs»National Instruments FBUS»NI-FBUS
Dialog
.
3.
Right-click
Open Descriptors
and choose
Expand All
.
4.
After the expansion is complete, click
Cancel
to close the
Expand All
window.
5.
Right-click the resource block for your device by selecting
Read
Object
from
Open Descriptors»Session»Interface Name»Device
Name»VFD Name»Resource Block Name
.
6.
Select the
Read by Name
radio button and enter
MANUFAC_ID
as the
name. Click the
Read
button. Write down the hexidecimal number
found in parenthesis (0xnumber) in Table C-1.
7.
Repeat step 6 for the name
DEV_TYPE
.
8.
Repeat step 6 for the name
DEV_REV
.
9.
Repeat step 6 for the name
DD_REV
.
10. Repeat steps 5 through 9 for each device, then close the NI-FBUS
Dialog utility.
Table C-1.
Device Names
Resource Block Parameter
Name
MANUFAC_ID
DEV_TYPE
DEV_REV
DD_REV
