eXtreme Fast Control (XFC) is the technique that enables very fast, temporally high-precision reactions using EtherCAT, special I/O terminals and TwinCAT on the PC. Using EtherCAT distributed clocks (DC) and appropriate terminals, distributed latches or cam controllers can be implemented simply in this way. function blocks for the high-precision acquisition and switching of digital signals related to axis positions EtherCAT distributed clocks with the timestamp-based EtherCAT EL1252, EL2252 or EL2262 input and output terminals blocks for the conversion of DC time to position and vice versa convenient PLCopen-compliant TouchProbe block digital cam controller as PLCopen-compliant block