PLC controlled by the user according to the procedures requested by the work. The establishment of procedures is to use certain programming language to control tasks described. Although various manufacturers PLC using different language, but its procedures are four basic expressions, symbols ladder diagram and instructions form, function diagram, high-level language. By the overwhelming majority of PLC ladder diagram and instructions table, the book will be FP1 - 40 models example described in detail. Ladder Diagram previous courses have been introduced, the so-called directive table, and that is using the name of the English acronyms to express the various functions Chujifu PLC. A directive from the completion of control tasks that the instructions portfolio instructions table. Each instruction from the general command element # mnemonic symbol and composed of two parts. Figure 4-1 for the PLC to a three-phase asynchronous motor / off control of the ladder diagram and instructions table.

Table of the ladder diagram and instructions will be the input method software in Chapter VII of programming the use of Chapter VIII of the experiment detailed briefings.  Programming for use in the experimental classes will be briefly introduced.

 FP1 Series PLC is rich in command system, which amounted to more than 190 orders, broadly categorized as shown in the table.

Table FP1 series of directives separate statistics