As if the struggle between industrial PC and PLC experienced in recent decades was cooled in recent years has emerged a new competitor: the PAC (Programmable Automation Controller O Programmable Automation Controller). According to advocates of CAP, it combines the advantages of the industrial PC and PLC, that is robust and reliable as a PLC and has the power and connectivity of a PC. The study of the differences between industrial PC, PLC and PAC notes that all move in the same debate between industrial PLCs (PLC) and industrial computers could not otherwise stop
