Keithley KPCI-PDISO8A, User Manual

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5-2 Troubleshooting KPCI-PIO32IOA and KPCI-PDISO8A User’s Manual
If your KPCI-PIO32IOA or KPCI-PDISO8A board is not operating properly, use the informa-
tion in this section to isolate the problem before calling Keithley Applications Engineering. If
you then need to contact an applications engineer, refer to “
Technical support .”
Identifying symptoms and possible causes
First try to isolate the problem using Table 5-1 , which lists general symptoms and possible solu-
tions for KPCI-PIO32IOA or KPCI-PDISO8A board problems.
If your board is not operating properly after using the information in Table 5-1 , continue with
“ Systematic problem isolation ” to further isolate the problem.
Table 5-1
Basic troubleshooting information
Symptom Possible Cause Possible Cause Validation/Solution
Computer does not
boot when board is
installed. Resource conflict. KPCI-PIO32IOA or
KPCI-PDISO8A board is conflicting
with other boards in the system.
1. Validate the cause of the conflict. Temporarily unplug
boards—especially ISA boards
1
—one at a time, and try
booting the computer. Repeat until a boot is attained.
2. Try resolving conflicts by reinstalling one PCI board at a
time and rebooting after each reinstallation.
2
However,
you may ultimately need to change ISA board resource
allocations, such as base address or interrupt assignments.
Board not seated properly. Check the installation of the board.
The power supply of the host computer
is too small to handle all the system
resources. Check the needs of all system resources and obtain a larger
power supply.
Board does not
respond to the AIO
Panel. DriverLINX is not installed properly
or is not configured properly. Refer to “Configuring the combined board and DriverLINX
installations” on page 3-6 . Check the Windows® Device
Manager and follow the installation troubleshooting
instructions in the DriverLINX on-line help.
The board is incorrectly aligned in the
expansion slot. Check the board for proper seating.
The board is damaged. Contact Keithley Applications Engineering.
Data appears to be
invalid. An open connection exists. Check screw terminal wiring.
Transducer is not connected to channel
being read. Check the transducer connections.
One or more external circuits are not
compatible. Check external circuit schematics. Test external circuits with
a DMM.
+5V power is not
available at I/0
connector. External circuit digital output and
power loads exceed current capacity of
the board, tripping self-resetting fuses. Check external circuits for shorts. Check the external circuit
load (must be less than 1A, total).
Intermittent
operation. Vibrations or loose connections exist. Cushion source of vibration and tighten connections.
The board is overheating. Check environmental and ambient temperature. See your
computer documentation.
Electrical noise exists. Check for AC power lines in close proximity to signal lines.
Provide better shielding or reroute unshielded wiring.
System lockup
during operation. A timing error occurred. Restart your computer. Then analyze your program by
debugging and narrowing the list of possible failure locations.
1
Plug and Play cannot tell if an ISA board already uses an address it assigns to a PCI board.
2
Plug and Play may then assign different, nonconflicting addresses to the PCI boards.