The left-hand side shows the connection of a 3-wire sensor. On the right-hand side, the connection of a 2-wire
sensor is shown according to the 3-wire principle. In this case, the second and third terminals (both minus
poles) are connected (bridged) directly on the field terminal.
Electric components and wiring
7
PLC
Service manual SPS 4000 | B0960622_en
131