Communication Module Features and Selection Guide

Introduction

The Modicon M340 can communicate with networks using:

Ethernet communication modules (BMX NOE 01x0)
embedded ports on the Modicon M340 CPUs (BMX P34 20x0x)

The interfaces for these communications modules are described below. When making your selection, consider each module’s services.

Embedded Ports on Modicon M340 CPUs

The BMX P34 20x0x CPUs have these ports:

CPU	Ports
BMX P34 2020	USB Ethernet Modbus serial
BMX P34 2030/20302	USB Ethernet CANopen

The locations of the ports are shown at External Features.

PLC

programmable logic controller. The PLC is the brain of an industrial manufacturing process. It automates a process as opposed to relay control systems. PLCs are computers suited to survive the harsh conditions of the industrial environment.

Ethernet

A LAN cabling and signaling specification used to connect devices within a defined area, e.g., a building. Ethernet uses a bus or a star topology to connect different nodes on a network.