DeviceMaster LT Troubleshooting

Review the following information before calling Technical Support because they will request that you perform many of the procedures or verifications before they will be able to help you diagnose a problem.

The following checklist may help you diagnose your problem:

  • Verify that you are using the correct types of cables on the correct connectors and that all cables are connected securely. See the DeviceMaster LT User Guide for up-to-date cabling information.


    Most customer problems reported to Pepperl+Fuchs Comtrol, Inc. Technical Support are eventually traced to cabling or network problems.

  • Make sure that you have installed and configured the latest driver.

  • Make sure that the serial device settings in the NS-Link driver match the serial device that you are connecting to the port.. If configuring the DeviceMaster LT for sockets, make sure that the Server Status (main) web page matches the serial device that you are connecting to the port.

  • If you have a spare DeviceMaster LT try replacing the DeviceMaster LT.

For additional troubleshooting, you can refer to one of the following:

You can refer to the DeviceMaster LT User Guide or the DeviceMaster NS-Link User Guide for Windows for additional troubleshooting ideas.

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