Working with contactsand relays1311SVC 440 795 M1100Working with contactsand relaysIn display system circuit diagrams, the switches, buttons andrelays of conventional circuit diagrams are connected upusing input contacts and relay coils.Display system circuit diagram:First specify which input and output terminals you wish touse in your circuit.The signal states on the input terminals are detected in thecircuit diagram with the input contacts I, R* or RN. Theoutputs are switched in the circuit diagram with the outputrelays Q, S or SN.Entering and changing contact and relay functionblock coilContactsAn input contact is selected in the display system via thecontact name and contact number.Example: Input contactConventional circuit Wired with the display systemDisplay system connectionConnect N/O contact S1 to inputterminal I1Connect N/O contact S2 to inputterminal I2Connect load H1 to output Q1S1 or S2 switch on H1.H1S1K1K1S2I 01--u---------------------Ä Q 01I 02--kI 02Contact nameContact number
