ut to PC, while other РProgramming principle is determined by lift control mode. Programming can either be made according to relay logic control circuit or individually in different phases according to lift control functions pletely separating from relay control circuit. Based on the ready made control circuit, the former is simple and easy to master, while the latter involves less programs by integrating programs of small function.РUsed in lift control system, PLC has such advantages, as high reliability, stability, easy programming, user-friendliness, convenient maintenance & inspection. РNowadays, there is a wide range and series of programmable logic controllers. Input / output points range from 30 to 8000 or above, so as to meet lift control requirements with different landing number.
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