How is the counting input connected? A How is the counting input connected? Count with neutral conductor: Connection: bridge terminal 3/4 Ch-A/B and terminal 2 (0 V) Programme: nPnPnP = 0 NPN Count with positive conductor: Connection: bridge terminal 3/4 Ch-A/B and terminal 1 (+V) Programme: nPnPnP = 1 PNP