Insert input I2 and XOR B1. Connect input I1 and I2 to the inputs 1 and 2 of XOR B1.
The output connector of the FB can be connected to multiple FB input connectors. Multiple output connectors of FBs cannot be
connected to a single input connector of an FB.
Insert special internal relay M8121, AND B2, and output Q1 and connect them.
Note: M8121 is a special internal relay that continuously turns on and off in a one second cycle. For details on the special internal relay, see "Special