SIMATIC ET 200 - For distributed automation solutions - November ...

© Siemens AG 2010Modular, intrinsically safe designThe ET 200iSP is installed in just a few steps:Safe in the field with the isolating transformer• The terminal modules are snapped onto the rugged andwell-proven S7-300 standard rail• Prewiring without electronics modules with spring-loadedand screw-type terminals• No need for tools, because the power supply, interfacemodule and electronics modules are simply plugged inSo that all the advantagesof a failsafe bus installationare also available withPROFIBUS DP, an isolatingtransformer is used to makePROFIBUS DP intrinsicallysafe. This is done by isolatingthe bus and limiting theenergy in the safe area. Thefieldbus isolating transformeris used here as a barrierthat converts PROFIBUSDP to an intrinsically safePROFIBUS DP. It allows thePROFIBUS connector to bedisconnected and connectedeven under Ex conditions.Fieldbus isolating transformerYou can find the SIMATIC Selection Tool on the Internet atwww.siemens.com/et200or in the Industry Mall and also in the Catalog CA01 on DVDThe fieldbus isolating transformer offers the following advantages:• Plug and Play without the need for time-consuming circuitcalculations and certifications (PROFIBUS Internationalguidelines 2262)• Simple modification/expansion• Connection of numerous devices• Implementation as a barrier or repeaterInterface moduleElectronic modulesEEx ibTerminal modules forelectronic modulesPower supplyEx d-protected24 V DC orAC 85 ... 264 VMounting railTerminal module forinterface modulePROFIBUS DP connectionEx ib intrinsically safeConnecting terminalsEEx ia/ibModular design of the ET 200iSP40SIMATIC ET 200iSP