Design of motion control module based on IEC 61131-3

JIN Li-juan1， YAN Yi1， LIU Gang2
（1. College of Computer， Hangzhou Dianzi University， Hangzhou 310018， China；
2. Zhejiang TOMAN Precision Machinery Co.， Ltd.， Xinchang 312580， China）

Abstract： Aiming at the compatibility problem of motion control programming language on different platform，the motion control function blocks based on the IEC 61131-3 international standard were used to program. Currently，the development of motion control function blocks based on the ladder diagram is still a problem. Based on the elevator door machine control system of DSP-PLC architecture，a realization method of motion control modules was put forward and a series of motion control modules were designed in accordance with IEC 61131-3 international standard. The motion control algorithms were of motion control modules were realized by the DSP and the modules were embedded in the ladder diagram，so as to use the ladder diagram to control motion process. Absolute positioning algorithms were realized respectively by motion control module and ladder diagram were analyzed. The results indicate that the motion control modules are easy to realize and generate a small amount of code. The realization method of motion control modules is suitable for motion control process，can reduce duplication development and simplify programming.
Key words： IEC 61131-3； DSP-PLC； motion control function block； motion control module