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Product Support

Product FAQs


How do I change the default COM port setting for multiport serial boards?

Some user applications may use a specific COM port requiring a change in the default COM port setting for multiport serial boards.


To change the default COM port used to communicate with multiport serial boards, do the following:

  1. Go to Windows Device manager > Multi-port serial adapters.
  2. Select the adapter and right click to open the menu.
  3. Click on the Properties link.

  4. Open the Ports Configuration tab.

  5. Click on the Port Setting button.
  6. Select the Port Number and click OK.
  7. Click OK to apply the changes.


Relevant Products

CP-102E/102EL Series · CP-102U/102UL Series · CP-104EL-A Series · CP-104UL/104JU Series · CP-116E-A · CP-118E-A-I/138E-A-I Series · CP-118EL-A · CP-118U/138U Series · CP-132EL Series · CP-132UL Series · CP-134EL-A-I Series · CP-134U Series · CP-168EL-A ·

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