Siemens DTU3005-B manual Multi-Drop Modbus Master to SEAbus

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1 Introduction

Figure 1.7 Connection to Modbus Master using a Multidrop Cable

Multi-Drop Modbus Master to SEAbus

By using a Siemens Isolated Multi-Drop Converter, you can connect your Modbus Master device to four DTU3005 devices. Each DTU3005 can connect to up to 32 Siemens ACCESS devices, as well as be daisy chained to up to 32 additional DTU3005 devices. An example configuration is shown below in Figure 1.8.

Figure 1.8 Multi-Drop Configuration

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Siemens Energy & Automation, Inc.

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Contents DTU3005-B Qualified Personnel Table of Contents Diagnostic Data Format Warranty134 135Features IntroductionProduct Overview Software OverviewPLC to SEAbus PLC to SEAbus Application Supported PLC WinPMModbus Master to SEAbus Modbus Master to SEAbusConnection to Modbus Master using a Multidrop Cable Multi-Drop Modbus Master to SEAbusSEAbus Port Expander SEAbus Port Expander Siemens Energy & Automation, IncInstalling the Software Installing the SoftwareInstalling the Software Starting the Software Menu NavigationStarting a New Project Using the Project MenuMain Menu Starting the Software Starting the Software Application Description Configuring the Project FileCreating Project Files-PLC to Devices PLC Setup-Port Communications Settings Wire RS422 or RS485 CommunicationsPLC Protocol DTU AddressDevice Setup-Port Saving Port 1 Configuration InformationOther Configuration Information Response Time-OutPassthrough Setup-Port Saving Port 2 Configuration InformationSaving Port 3 Configuration Information Intermessage Time-OutDevice List Setup Adding a DeviceCreating Project Files-PLC to Devices Configuring Custom Device Registers Saving the Device List ConfigurationConfiguring Custom Registers for a Single Device Removing a DeviceCreating Project Files-PLC to Devices Configuring Default Custom Device Registers by Device Creating Project Files-PLC to Devices Device Text Setup 7SJ600 Only Description of Returned Trip Global Command Registers Device Diagnostic RegistersDevice Command Registers Saving the Project File Creating Project Files-Modbus Master to Devices Creating Project Files-Modbus Master to DevicesConfiguring the Project File Modbus Setup-Port RS-485 Connector two-wire Device Setup-Port Modbus/Passthrough Setup-Port Modbus MasterWith the 2-Wire RS422 or RS485 Communications Passthrough to Port 2 SEAbusDevice List Setup Creating Project Files-Modbus Master to Devices Configuring Custom Device Registers Creating Project Files-Modbus Master to Devices Configuring Default Custom Device Registers Creating Project Files-Modbus Master to Devices Device Text Setup 7SJ600 Only Value Inputs 2 Global Command Registers Device Command Registers Creating Project Files-SEAbus Port Expander Creating Project Files-SEAbus Port ExpanderMenu, and the Port 1 Passthrough configuration Communications Settings SEAbus Device Setup-Port Configuration InformationTransferring Project Files Transferring Project FilesPersonal Computer RS-232 Port Downloading Projects