Troubleshooting checklist – Comtrol DeviceMaster NS-Link User Manual
Page 64
64 - Troubleshooting and Technical Support
DeviceMaster Driver User Guide: 2000595 Rev. A
Troubleshooting Checklist
addition, it provides you with raw byte input and output counts
Test Terminal and Port Monitor are installed and available if you install
PortVision DX. You can refer to the
Port Monitor and Test Terminal User
Guide
for testing procedures.
Troubleshooting Checklist
Most customer problems reported to Comtrol Technical Support are eventually
traced to cabling or network problems.
Reboot the system and reset the power on the DeviceMaster, watch the PWR or
Status light activity. See
on Page 68 for information about the
diagnostic LEDs.
•
If the DeviceMaster has a power switch, turn the DeviceMaster power switch
off and on.
•
If the DeviceMaster does not have a power switch, disconnect and reconnect
the power cord.
The following table may help you diagnose your problem:
PWR or Status LED
Description
5 sec off, 3 flashes, 5 sec off, 3 flashes ...
Redboot checksum failure.
5 sec off, 4 flashes, 5 sec off, 4 flashes ...
SREC load failure.
5 quick flashes
The default application is starting
up.
10 sec on, .1 sec off, 10 sec on .1 sec off ...
The default application is running.
Issue
Check
Cabling?
Verify that you are using the correct types of cables on the correct
connectors and that all cables are connected securely using the
DeviceMaster Installation and Configuration Guide (Page 7).
Network?
•
Isolate the DeviceMaster from the network by connecting the
DeviceMaster directly to a NIC in a host system.
•
See
on Page 66 for network
cabling information.
•
Reduce network traffic by installing a second NIC in the host
and connect directly to the DeviceMaster.
•
Verify that the Ethernet hub, switch, or router and any other
network devices between the system and the DeviceMaster
are powered up and operating.
Correct MAC
address?
Verify that the hardware MAC address in NS-Link matches the
address on the DeviceMaster label. You can also use PortVision
DX to verify the MAC and IP addresses.
Correct IP
address?
•
Verify that the network IP address is correct. If IP addressing
is being used, the system should be able to ping the
DeviceMaster.
•
Verify that the IP address programmed into the
DeviceMaster matches the unique reserved IP configured
address assigned by the system administrator.