DL305 Data Communications Unit and FA-UNICON Universal Converter Manual

This document describes the DL305 Data Communications Unit (DCU), a general-purpose communications interface for the DL305 PLC family, detailing its two operating modes: as a general-purpose port for connecting PCs or operator interfaces, and as a DirectNET network interface for data sharing between PLCs and intelligent devices. It also covers the FA-UNICON Universal Converter, which converts RS-422 signals from the D3-422-DCU to RS-232C for PC connectivity, along with specifications, wiring, and compatibility details.