Comtrol DeviceMaster PRO Installation And Configuration Manual page 98

Troubleshooting Checklist
98 - Troubleshooting and Technical Support
PWR or Status LED
5 quick flashes
10 sec. on, .1 sec. off, 10 sec. on .1 sec. off ... The default application is running.
• If the device has a power switch, turn the device's power switch off and on, while
watching the LED diagnostics.
• If the DeviceMaster does not have a power switch, disconnect and reconnect the
power cord.
• Verify that the hardware MAC address in NS-Link matches the address on the
DeviceMaster.
• Verify that the network IP address, subnet mask, and gateway is correct and
appropriate for the network. 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.
• If using DHCP, the host system needs to provide the subnet mask and gateway.
• If using a driver for Windows, verify that you are addressing the port correctly. In
many applications, device names above COM9 require the prefix \\.\ in order to be
recognized. For example, to reference COM20, use \\.\COM20 as the file or port name.
• If using a driver for Windows, you can use one of the Comtrol tools, which are
discussed in the NS-Link User Guide.
- Device Advisor, which helps identify problems is a tab in the Advisor window of
the Windows driver.
- Test Terminal program, which can be used to troubleshoot communications on a
port-by-port basis.
- Port Monitor program, which checks for errors, modem control, and status
signals. In addition, it provides you with raw byte input and output counts.
• If using a driver for Windows hosts, enable the Verbose Event Log feature under the
Options tab and then reboot the system.
• Reboot the system and the DeviceMaster.
• Remove and reinstall NS-Link.
• If you have a spare DeviceMaster, try replacing the device.
Description
The default application is starting up.
DeviceMaster Installation and Configuration Guide: 2000506 Rev. B