Comtrol DeviceMaster PRO - Page 148

148 - Troubleshooting and Technical Support DeviceMaster Installation and Configuration Guide: 2000594 Rev. F
Troubleshooting and Technical Support
• Verify that the network IP address, subnet mask, and gateway is correct and appropriate for the network.
Make sure that the IP address programmed into the DeviceMaster matches the unique reserved IP
configured address assigned by the system administrator.
- If IP addressing is being used, the system should be able to ping the DeviceMaster.
- If using DHCP, the host system needs to provide the subnet mask and gateway.
• Verify that the Ethernet hub and any other network devices between the system and the DeviceMaster
are powered up and operating.
• Verify that the hardware MAC address in the NS-Link device driver matches the address on the
DeviceMaster.
• 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.
- Advanced tab in the DeviceMaster Drivers Management Console which helps identify problems.
- PortVision DX contains two applications that can be used to test or monitor the DeviceMaster:
- Test Terminal program, which can be used to troubleshoot communications on a port-by-port basis.
See Testing Ports Using Test Terminal on Page 154 for testing procedures.
- Port Monitor program, which checks for errors, modem control, and status signals. In addition, it
provides you with raw byte input and output counts. See
Testing Ports Using Port Monitor (PMon2)
on Page 151 for procedures.
- Enable the Verbose Event Log feature on the Device General tab and then reboot the system.
• Reboot the system, then reset the power on the DeviceMaster and watch the PWR or Status (Page 167)
light activity.
Note: 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.
• Remove and reinstall the DeviceMaster NS-Link device driver.
• If you have a spare DeviceMaster, try replacing the device.
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.