下面是工控網小編搜集到的plc英文（外文）參考文獻：

    1、Michel Gilles.Programmabe Logic Controllers:Architecture and Application Wiley.1990.

    2、G.L.Batten. Programmabe Controllers:hardware.software and Application..New York:MC Graw-Hill.1994.

    3、Cheded.Al-Mulla. Control of a four-level elevator system using a programmable logic controller. International Journal of Electrical Engineering Education.,2003

    4、Matsushita Electric Works Ltd., Automation Control Group. FPO programming manual [EB/OL]. (2004-10-05)[2008-09-10]

    5、He yong yi. A Control System of Material Handling in FMS. Journal of shanghai university. Vol.1.No.1.1997

    6、Ren Sheng-le. Development of PLC-based Tension Control System.Chinese Journal of Aeronautics20 (2007) 266-271

    7、M. Paredes, M. Sartor, C. Masclet. An optimization process for extension spring design. Computer Methods in Applied Mechanics and Engineering. 2001, 191(8): 783-797

    8、Siemens AG.Working with STEP7 V5.2 Getting Started.2002