This section provides an overview of the features and function of the Momentum Modbus Plus Communication Adapters.
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 bits are transferred in the IEC format. This is the standard data format for the Momentum product line.
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.
The diagram below shows a Modbus Plus Communication Adapter mounted on a typical I/O base.
Environmental Specification
The adapter conforms to the environmental specification for the I/O base upon which it is mounted. For further information refer to the Momentum I/O Bases User Manual, part number 870 USE 002 00.
