【正文】 last cyclical the work, returns to the zero point, autostop. Can realize the material autocycle transporting based on the PLC control material transporting system both may use clamps the hand clamp material, and may use the vacuum cup adsorption material, has the multiple functions function。 Clamps the hand or the vacuum cup together with rises and falls the air cylinder to move the air cylinder in about under the function to be possible to control along the column guide rail moves。 The pneumatic system electromagism cross valve selects the afflux board collection attire method, reduced has taken the space。s operating performance. In the actual movement, the hand fingernail supports on both sides the strength to be supposed to guarantee is bigger than all static and the dynamic strength sum total. The PLC procedure movement way is circulates the scanning way, but the non order carries out the way。 explicit: The work piece structure shape and the materials behavior, the pointing accuracy request. capture, time the transporting stress characteristic, the size and the quality parameter and so on, thus further determines to the machinist structure and the operating control request。s basic request, accurately ascend to put requests them with transporting thing. To have the high accuracy, the rapid reaction, the certain bearing capacity, the enough working space and the nimble degree of freedom and in the free position all can characteristic and so on automatic positioning. Designs the air operated machinist39。 1 Air operated moves the carrier vehicle and the PLC control Abstract:Air operated namely uses the air pump and the air valve control air current, the positive governing barometric pressure and the current capacity, enable the air to have the programmable controller (PLC) is taken the microprocessor as the core, collection puter technology, the automated control technology in a body one new industry control system. PLC has used the model puter structure, mainly includes CPU, RAM, ROM and the input/ Output connection electric circuit and so on. If regards as PLC a system, this system is posed by the input variable PLC output variable, the exterior each kind of switching signal, the simulated signal, the sensor examine the signal took PLC the input variable, they input after the PLC exterior post to the internal register in, after the PLC interior logic operation or other each kind of operation, processing delivers the output terminal, they are the PLC output variable, carries on each kind of control by these output variables to the auxiliary equipment. Key words:Air operated,PLC control The PLC control system adopts generally easy to understand and to grasp trapezoidal chart language and face industry control simple instruction. The image is directviewing, is based on the field bus technology, opens pletely, and uses the advanced software and hardware technology. The PLC control has the structure simply nimble, the antijamming ability strong, safe reliable, installs the convenience, the failure rate lowly, the maintenance is simple, large scale saves the use cost the characteristic, can satisfy each kind of center small scale process control, the smooth logic control and the data acquisition duty demand, widely has used in gradually in the industry control system, including domain and so on metallurgy, mining industry, machinery, light industry, has provided the powerful tool for the industrial automation. The control engineering in the near future to will use in the logical equipme nt which programmed the process and the machinery c