RS-485 configuration

Before connecting your device to the RS-485 bus, use ION Setup, the meter webpages or the display to configure your meter’s default RS-485 settings.

Your meter has two RS-485 connections.

Each RS-485 connection must have a unique unit identifier (Unit ID) and have the following settings match the rest of the devices on the RS-485 bus:

  • Protocol

  • Baud rate

  • Parity and stop bits

You can configure the following settings to help optimize communications performance:

  • RTS delay

  • RS-485 bias

You can use a communications converter (USB to RS-485 or RS-232 to RS-485) or an Ethernet gateway device to connect to your meter.

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