Disabling serial communications using the display

Note: Disabling unused ports is considered a cybersecurity best practice to help minimize unauthorized access to your meter.

To disable serial communications using ION Setup:

1. Press the Home button.
2. Press Setup Menu > Communications Setup.
3. Press Select.
4. Scroll then select COM1 Setup.
5. Press the navigation button to scroll and select Protocol.
6. Press the Edit button. Enter user credentials if prompted.
7. Press the down button and then select None to disable the port.
8. Press the Select button when you are finished. If prompted, press Select button again to accept the changes.