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Why can't I connect my E-Series to PowerPort-E via RS232?

Use a PowerPort-E version release 3.41 or higher. Starting from this release PowerPort-E supports a simplified creation of a serial connection.  Where can I download PowerPort-E?
If your PC does not have a serial port, you need a USB-to-serial-adapter that has been approved by Eaton. This has to be installed correctly.
Verify that your cable is a zero-modem cable (please refer to the corresponding chapter). A simple serial cable does not have any flow control lines. A connection is only possible with a zero-modem cable.