Signal converter for electromagnetic flowmeters

3 PROFIBUS PAIFC 3003.2 System configuration of PROFIBUS PA networkThe following diagram shows a typical instrumentation with PROFIBUS PA devices with MBPinterface in hazardous and non-hazardous locations, including connections of conventionaldevices (e.g. with 4...20 mA signals) in a PROFIBUS network.As a rule, the PROFIBUS PA segment is connected to a segment coupler which, among otherthings, carries out the conversion to the PROFIBUS DP bus line. It should be mentioned that thesegment coupler is normally set to a fixed baud rate on the DP side.Figure 3-1: PROFIBUS PA network1 Control system (PLC); class 1 master2 Engineering or operation control tool; class 2 master3 PROFIBUS DP network with max. 12 Mbit/s4 PROFIBUS PA segment coupler DP / PA5 Device with PROFIBUS PA interface, 31.25 kbit/s6 HART ® device7 More devices with 4…20 mA8 Analogue I/O module16www.krohne.com02/2011 - 4001086601 - AD IFC 300 PROFIBUS R01 en