A protection system for an automate process control system includes a plurality of programmable anti-intrusion modules. A helical groove is made in the outer circumferential surface of the roller. An output of the thermocouple is taken out to the outside through the clamper pin. The through hole conductors 5 and 25 are aligned with each other, and the bonding surfaces 12 and 22 are bonded to each other in a solid state bonding manner.