`button_lamp` example for S7-1200: ``` IF syncAutEdge__1 = 1 THEN sup := someConstantvariable; ELSIF syncAutEdge__1 = 2 THEN sup := someConstantvariable; END_IF; ``` while plcopen generates lines like ``` IF syncAutEdge__1 = 1 THEN sup := sup_s6; ELSIF syncAutEdge__1 = 2 THEN sup := sup_s7; ``` Addresses #679