This manual describes the functionality of the 170 PNT Series Modbus Plus Communication Adapters.

The following information is an introduction to this manual:

Function: The Modbus Plus Communication Adapters can be connected to any Momentum I/O base to create a functional I/O module.

The adapters provide direct connection to the Modbus Plus network, enabling a programmable controller to communicate with field devices wired to the I/O base terminals.

The controller on the network can read from the input terminals and write to the output terminals of the I/O base using Modbus Plus Peer Cop or MSTR Function Block messaging.

Data Format: Data bits are transferred in the IEC format. This is the standard data format for the Momentum product line.

Models:

Model 170 PNT 110 20 has one Modbus Plus port for connection to a network with a single trunk cable.

Model 170 PNT 160 20 has two ports for connection to either a single-cable or dual-cable network.