Connections Between the Adapter and I/O Base

Overview

This section explains the connections between a Communication Adapter and an I/O base.

Physical Connections

A Communication Adapter can be snapped directly onto a Momentum I/O base, making connections at three points:

The plastic snap extensions on the two sides of the adapter unit fit into the two slots on the sides of the I/O base
The ATI connectors on the two units mate together

Clips lock the adapter in place. The clips can be released with a common screwdriver to remove the adapter.

Electrical Connections

Each adapter connects to the internal communication connector of its I/O base. The adapter receives its operating voltage from the I/O base through this internal connection.

The adapter monitors its voltage and goes offline to the Modbus Plus network if the voltage is not within tolerance.