Implementation of PCs' Program According to Description of Sequential Control with Total Sequential Function Chart

摘要

Material Handling System (MHS) is a kind of typical sequential control systems and also an important part of Factory Automation (FA) or Computer Integrated Manufacturing (CIM). The control of MHS is usually performed by Programmable Controllers (PCs) and its description depends on the PCs used. Ladder Diagram (LD) is widely used as a description method of PCs in sequential control systems. In recent years, a new description method called Sequential Function Chart (SFC) is also used in some PCs on the market.