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Assembling Adapter and I/O Base

870 USE 103 00 May 2001

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.

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Momentum Modbus Plus 170 PNT Series Guia do Utilizador Página 18