1 Introduction
1.1Product Overview
The Panel-Tec DTU3005 is an intelligent, multiple- function data transfer unit that enables communica- tions between Siemens communicating power meters, trip units, and protective relays, and PLCs or Modbus networks. The device is designed for the harsh industrial environment and is suited for use in switchgear. The device is shown below in Figure 1.1. The device is powered from an external power supply. Three ports allow for connection to the Siemens ACCESS devices and selected protective relays, a PLC or a Modbus RTU or ASCII master system, and a passthrough, which allows direct communications with port 1 or port 2 from port 3. Status lights indicate proper operation, and DIP switches allow access to programming and diagnostic modes.
The DTU3005 device supports a wide variety of PLCs and Siemens ACCESS devices. Appendix A lists the PLCs and protocols supported by the DTU3005. Appendix B lists the supported Siemens ACCESS devices and protective relays.
Figure 1.1 Panel-Tec DTU3005 View Showing 3 Ports and Power Supply
1.2Software Overview
The DTU3005 Editor software is a MS-DOS based pro- gram for configuring the DTU3005 device. It provides for uploading and downloading configurations via the computer’s serial port. You can edit and save configu- rations in project files on your computer’s hard drive. Chapters 2 through 8 discuss installing and using the editor software to configure your DTU3005 device.
1.3Features
Device Features:
•Compact size (8" x 6" x 1")
•Port 1 and Port 3 Features
•Transfer data directly to one of 25 PLCs sup- ported
•Baud rates up to 187,500
•Addressable Modbus RTU slave capability
•(Port 3) Passthrough Port for connection to WinPM
•Port 2 Features
•Twelve Siemens ACCESS devices supported
•Ten Siemens protective relays supported
Editor Software Features:
•MS-DOS based (also runs under Microsoft Win- dows)
•Menu driven
•Mouse supported (but not required)
1.4Applications
The following are possible hardware configurations using the DTU3005 to connect to Siemens ACCESS devices.
