Appendix C
Troubleshooting and Common Questions
ENET-232 and ENET-485 Series User Manual
C-8
ni.com
Ethernet straight-through cable if the serial device server is connected
to a network hub.
•
Check that the serial device server is connected to the network and the
LINK
LED is lit.
•
Verify that the hostname is correctly entered in the DNS table. For
more information, refer to the
Cannot Access Device When Using
topic, earlier in this appendix.
•
If the serial device server is located on a different subnet, refer to the
Cannot Communicate with Devices Located on Other Subnets
topic,
earlier in this appendix.
VI_ERROR_RSRC_BUSY
This error message occurs if the serial device server is unable to process a
diagnostics command. The most likely cause of this problem is that a serial
port is open by another user or application. Close all serial ports and run
the diagnostics program again. All serial ports are closed if all port LEDs
are off.
Common Questions
Windows 2000/NT 4.0
How can I determine which type of serial hardware I have installed?
(Windows 2000)
To display a list of all installed communication ports,
right-click
My Computer
, and select
Properties
. Under the
Hardware
tab, select
Device Manager
. All installed serial ports are listed under
Ports
.
(Windows NT)
To display a list of all installed communication ports, select
Start»Settings»Control Panel»Ports
. To display a list of installed
National Instruments serial ports, select
Start»Settings»Control Panel»
NI Ports
.
How can I determine which version of the serial server software I have
installed?
The
Readme.txt
file included with the serial server software for
Windows 2000/NT gives the version of the software. To open the file, select
Start»Programs»National Instruments Serial Server»Readme.txt
.
