Introduction: Saia Burgess Controls (SBC) is a subsidiary of Saia Burgess Group in Switzerland. Its main product brands include Swiss switches, and SBC has a product line of PLC/DC and human-machine dialogue equipment. Its process controller product Saia PCD mainly meets the automation, safety, energy conservation, and intelligence needs of industrial and commercial fields such as buildings, transportation, production, water treatment, energy, lighting, ventilation, and gas supply. With its advanced electronic technology, computer technology, control technology, network and communication technology, and excellent quality, SBC has won market recognition and the trust of users; Saia Burgess official website: www.saia-pcd.com.