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210 • Application examplesTest of MODBUS protocol and fieldbus nodesWAGO-I/O-SYSTEM 750ETHERNET TCP/IP8 Application examples8.1 Test of MODBUS protocol and fieldbus nodesYou require a MODBUS master to test the function of your fieldbus node. Forthis purpose, various manufacturers offer a range of PC applications that youcan, in part, download from the Internet as free of charge demo versions.One of the programs which is particularly suitable to test your ETHERNETTCP/IP fieldbus node, is for instance ModScan from Win-Tech.More informationA free of charge demo version from ModScan32 and further utilities fromWin-Tech can be found in the Internet under:http://www.win-tech.com/html/demos.htm.ModScan32 is a Windows application that works as a MODBUS master.This program allows you to access the data points of your connectedETHERNET TCP/IP fieldbus node and to proceed with the desired changes.More informationFor a description example relating to the software operation, please refer to:http://www.win-tech.com/html/modscan32.htm8.2 Visualization and control using SCADA softwareThis chapter is intended to give insight into how the WAGO ETHERNETfieldbus coupler/controller can be used for process visualization and controlusing standard user software.There is a wide range of process visualization programs, called SCADASoftware, from various manufacturers.More informationFor a selection of SCADA products, look under i.e.:http://www.abpubs.demon.co.uk/scadasites.htm.SCADA is the abbreviation for Supervisory Control and Data Acquisition.It is a user-orientated tool used as a production information system in the areasof automation technology, process control and production monitoring.The use of SCADA systems includes the areas of visualization andmonitoring, data access, trend recording, event and alarm processing, processanalysis and targeted intervention in a process (control).The WAGO ETHERNET fieldbus node provides the required process inputand output values. |
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