【導(dǎo)讀】第二次世界大戰(zhàn)之后,工業(yè)飛速發(fā)展，立體倉(cāng)庫(kù)應(yīng)運(yùn)而生。50年代初，美國(guó)首先研制。越來(lái)越快，成為當(dāng)今世界上擁有自動(dòng)化立體倉(cāng)庫(kù)最多的國(guó)家之一。制出了第一臺(tái)橋式堆垛起重機(jī)，1973年開始研制第一座由計(jì)算機(jī)控制的自動(dòng)化立體倉(cāng)庫(kù)。用率低且陳舊落后的平面?zhèn)}庫(kù)，這種替代大大提高了倉(cāng)儲(chǔ)物流的水平。倉(cāng)庫(kù)以及采用PC機(jī)遠(yuǎn)程管理與PLC聯(lián)網(wǎng)控制的全自動(dòng)立體倉(cāng)庫(kù)為主。但其中不容忽視的。自動(dòng)化立體倉(cāng)庫(kù)系統(tǒng)模型，最終實(shí)現(xiàn)立體倉(cāng)庫(kù)系統(tǒng)的自動(dòng)化、智能化在實(shí)際生產(chǎn)中的應(yīng)用。PLC已經(jīng)廣泛的應(yīng)用在各種機(jī)械設(shè)備和生產(chǎn)過(guò)程的自動(dòng)控制系統(tǒng)中，在其。先進(jìn)工業(yè)國(guó)家中PLC已成為工業(yè)控制的標(biāo)準(zhǔn)設(shè)備，幾乎覆蓋了工業(yè)控制全行業(yè)。目前PLC正在向通用化、系列化和高性能化的趨勢(shì)發(fā)展，主要表現(xiàn)在：。同時(shí)也使的PLC的組成和維護(hù)更加靈活方便，使PLC的應(yīng)用范圍更加寬廣。推出的一種造價(jià)低廉、功能強(qiáng)大的普及型PLC。FX1N系列PLC有13種基本單元

　　

【正文】 ontains two types of sensors: an approximate sensor that has 5sides detection with model TURCK Bi15cp40 APcx sn:15 mm and photoelectric sensors with two models BR100DDTP and BEN10MTFR. The first detects any interrupt within a range of 8 meters and the second detects the reflection from a certain crystal surface within a range of 8 meters. Two types of relays are used in the board: twopoles and threepoles 24VDC. Figure 8 presents the two relays, the sensors and the connection in the board. 河北大學(xué) 20xx屆本科生畢業(yè)論文（設(shè)計(jì)） 51 Many other ponents that are used in the broad to connect the experiments such as four 7segments, three digital ammeters and three digital voltmeter, three variable resistance 20 Kohm to execute the analog to digital convertor (A/D) and opposite (D/A) and power supply with two 12VDC ports, two 5VDC ports and four 24 VDC ports. Figure 9 presents the power supply ports in the board. Figure 10 presents the ammeters and converter A/D. DC motor with model GMN3MX027A DC24V and driver for AC and DC motor start/stop, direction and emergency control of DC motor and speed control AC motor are implemented in the board. Figure 11 presents the connection of the motor and drivers in the board. ? Experiments board The board is designed to implement many experiments, some of the experiments the connection diagram is plotted on the board such as traffic light control. Figure 12 presents the overall board design. 河北大學(xué) 20xx屆本科生畢業(yè)論文（設(shè)計(jì)） 52 4 Software Design of PLC Trainer Model LS industrial system pany GM7DR40 PLC uses the language announced as an international standard by IEC (International Electro technical Commission). The international standard languages such as LD, SFC, IL available to select the language are easy to apply to the system. I used the LD (Ladder Diagram) to build the program for experiments. Figure 13 presents the main window for building the program and simulating the instruction before writing on the memory of PLC through the RS232 connecter. Every instruction in the program must be piled before writing the process code to the memory of PLC. After pilation we can simulate the program to check and explain the working of real PLC with this program and the input to simulation process can be done manually, all these processes are shown in Figure 13. 5 Experiments of PLC Trainer This trainer is designed to implement the experiments of classical control laboratory to replace the PID controller by PLC controller where the last has a wide range in industrial application. The experiments that are implemented in this lab can be divided into three main groups according to application field in classical control approach: Logic process, power system and interactive process control, where by using this trainer six experiments can be done in logic process, ten experiments in power system and eight experiments in the interactive process control. 河北大學(xué) 20xx屆本科生畢業(yè)論文（設(shè)計(jì)） 53 Every experiment has a procedure for connection on the board and program for writing with PLC memory and then run the connection. For example, the implementation of traffic light control can be discussed by the procedure as follows: 1) Switch OFF main supply 220VAC amp。 switch OFF 24VDC. 2) Connect (24VDC) from Power supply to (COM) of (O00 O11). 3) Connect (O00 O11) to traffic light diagram on the board according to the diagram that is shown in Table 1. 4) Switch ON main supply 220VAC. 5) Download the ladder program of traffic light control to PLC. The program is similar to the program that is shown in previous page (Figure 13). 6) Switch ON 24VDC, the traffic light LEDs must be activates according the sequence at is shown in Table 2. Note: the value of time in this experiment is taken fast to explain all process in short time. The practice connection for this experiment is shown in the previous page (Figure 12). 6 Conclusions The practice results that are obtained in real implementation of all experiments in the laboratory and the simulation results by LD program, it can be seen that the implementation of PLC controller with classical control systems is necessary. This implementation has high performance, high accuracy and more speed response pared to the classical controller. The trainer presents practice simulation for many real systems。 therefore it is very suitable for classical 河北大學(xué) 20xx屆本科生畢業(yè)論文（設(shè)計(jì)） 54 laboratory unit with undergraduate students. 7 Acknowledgements Special thanks are due to AL Anbar University/Engineering College for support me with the implementation of the PLC trainer laboratory. REFERENCES [1] , S. Higgins, S. Schaffner and D. Seidman, ―PLC Support Software at Jefferson Lab,‖ Jefferson Lab, Newport News, 20xx. [2] J. R. Hackworth and F. D. Hackworth, ―Programmable Logic Controllers: Programming Methods and Applications,‖ Prentice Hall, Upper Saddle River, p. 13. [3] L. A. Bryan and E. A. Bryan, ―Programmable Controllers Theory and Implementation,‖ 2nd Edition, Industrial Text Company Publication, Atlanta, 1997. [4] H. Jack, ―Automating Manufacturing Systems with PLCs, Version ,‖ Copyright (c) 199320xx Hugh Jack, 20xx. [5] S. Yurkovich and K. M. Passino, ―A Laboratory Course on Fuzzy Control,‖ IEEE Transactions on Education, Vol. 42, No. 1, 1999, pp. 1521. [6] , ―Development of a Comprehensive Industrial Controls Course in a Manufacturing Engineering Program,‖ American Society for Engineering Education, Washington DC, 20xx. [7] X. Yu, X. Feng, C. Xiong and S. Jiaotong, ―The Design and Implementation of Elevator Group Control System Research Platform,‖ Proceedings of the 20xx International Workshop on Information Security and Application, Qingdao, 2122 November 20xx. 河北大學(xué) 20xx屆本科生畢業(yè)論文（設(shè)計(jì)） 55 可編程邏