5 Electrical Interconnections ConverterD184B122U02 S4 195.8 Interconnection Examples Peripherals with PROFIBUS PAFig. 10: Interconnection Examples for Peripherals with PROFIBUS PA9798RCPA-PA+Bus CablePROFIBUS PAinternal external1 234M3 M1FRAM 41 42 97 98U+ 2S 1 1S U- 33 2 16 6 7PROFIBUS PAThe resistance R and the capacitor C formthe bus termination. They are to be installedif the instrument is connected at the end ofthe bus.R = 100 Ohm; C = 1 μFContact output see Page 18Bus termination in converter S4To terminate the bus if the instrument is at the end of the bus cable, the termination components inthe converter S4 can be used. To accomplish this, close both hook switches in the connection areaof the converter.Important!If the converter module is removed, the bus termination is also removed.Interconnection Example for PROFIBUS PA using M12-Plug (option)Pin designations(View from the front onto the pin insert andpins)PIN 1 = PAPIN 2 = ncPIN 3 = PA-PIN 4 = ShieldConnections using the M12-Plug (only for PROFIBUS PA design)As an option, the bus termination can be made using the M12-plug instead of the cable connector(see Ordering Information for the instrument).The instrument is then shipped completely wired. Suitable receptacles (Type EPG300) together withother accessories may be found in the List Sheet 10/63.6.44DE.Close hook switches forbus termination
