DL405 Data Communication Module (DCM) Overview and Specifications

This document provides an overview and specifications for the DL405 Data Communication Module (DCM), a general-purpose communications interface for the DL405 family of PLCs. It details the module's use as an extra communications port, a DirectNET network interface (Client/Server), and a Modbus RTU protocol Server, along with setup instructions, power budget calculations, and wiring considerations.