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THE DESIGN OF CONTROLLING IN THE AUTOMATIC FEEDING CAR BASED

ON PLC

Abstract:Programmable logic controller referred to PLC £¬because of the

high reliability PLC adaptability£¬flexibility£¬environment£¬use convenient£¬simple maintenance£¬so the application of PLC in the rapidly expanding. In early PLC £¬always have relays place£¬can use. But in today's PLC to control system that almost say there is need of place of PLC. Especially in recent years£¬ the cost of PLC £¬ function and not increase£¬ so£¬at the moment£¬PLC at home and abroad£¬has been widely used in various industries.

In order to achieve the design of the car feed the transformation of manual and automated£¬simple to change the past£¬car manual feed£¬a reduction of the workforce£¬ increased productivity£¬automated production! Feeding and the car is designed to be as a result of bad working conditions are not allowed to enter the working environment of the circumstances formed.

This article from the first chapter to second chapter of the feed system of the car identified as an entry point to introduce a car Why choose PLC control; Chapter III introduced the car feed the control requirements to be met; Chapter ¢ô to chapter ¢÷ under the control of the car system to carry out the specific design£¬including the terminal wiring diagram£¬ladder diagram (Sub-total system design descriptions and ladder) and procedures for instruction design; the final conclusion.

Keywords:PLC £¬Feeding car£¬Control£¬Program design

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ǰÑÔ ..................................................................... 1 1 ×Ô¶¯ËÍÁÏ×°³µÏµÍ³¼ò½é .................................................. 1

1.1 ×Ô¶¯ËÍÁÏ×°³µÏµÍ³µÄÌØµã ........................................... 1 1.2 ×Ô¶¯ËÍÁÏ×°³µÏµÍ³µÄÓ¦Óà ............................................ 1 1.3 ×Ô¶¯ËÍÁÏ×°³µÏµÍ³ÓëÆäËû»úеϵͳ¹²Í¬µÄÌØÕ÷ ......................... 1 1.4 »ùÓÚPLC×Ô¶¯ËÍÁÏ×°Öüò½é ......................................... 2 2 PLC¼ò½é ............................................................... 2

2.1 PLC¼ò½é ......................................................... 2

2.1.1 PLCµÄÌØµã .................................................. 2 2.1.2 PLC¿ØÖÆË¼Â· ................................................. 2 2.2 PLCµÄ¹¦ÄÜ ....................................................... 3 2.3 PLCµÄµçÔ´ ....................................................... 4 3 ×Ô¶¯ËÍÁÏ×°³µÏµÍ³×ÜÌåÉè¼Æ·½°¸ .......................................... 4

3.1 ¸ÅÊö .............................................................. 4 3.2 ¿ØÖÆÒªÇó .......................................................... 5 3.3 ϵͳ×é³É .......................................................... 6 3.4 ¹¤×÷Ô­Àí ......................................................... 7 4 PLC¿ØÖÆÏµÍ³µÄÉè¼Æ ..................................................... 7

4.1 Á˽âPLC¿ØÖÆÏµÍ³Éè¼ÆµÄ²½Öè ....................................... 7 4.2 Éè¼ÆÖÐPLC¿ØÖÆÏµÍ³ÓïÑÔ ........................................... 8 4.3 ³ÌÐòÉè¼ÆÓëµ÷ÊÔ ................................................... 9

4.3.1 ³ÌÐòÉè¼Æ ................................................... 9 4.3.2 ³ÌÐòµ÷ÊÔÄ£Äâ .............................................. 11

5 ¶¯Á¦×°ÖÃÑ¡Ôñ ......................................................... 11

5.1 µç¶¯»úµÄ½éÉÜ .................................................... 11

5.1.1 ÆÕͨÒì²½µç»ú .............................................. 11 5.1.2 ÆÕͨͬ²½µç»ú .............................................. 12 5.1.3 ±äƵµç»ú .................................................. 12 5.2 µç¶¯»úµÄÑ¡Ôñ .................................................... 13 5.3 ¼õËÙÆ÷µÄ×°ÅäÓëµ÷Õû .............................................. 14

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6 »úеÊäËÍ ............................................................. 15

6.1 ½º´øÊäËÍ»ú½á¹¹Ó빤×÷¹ý³Ì ........................................ 15

6.1.1 ÊäËÍ´ø .................................................... 15 6.1.2 ÊäËÍ´øµÄÖÖÀà .............................................. 15 6.1.3 ÕŽôÉè¼Æ .................................................. 16 6.2 ½øÐ¶ÁÏ×°Öà ...................................................... 16 6.3 Ö§³Å×°Öà ........................................................ 16 6.4 Çý¶¯¹öͲ ........................................................ 17 6.5 ÁªÖáÆ÷ .......................................................... 17 6.6 »ù±¾µÄ¼ÆËã¼°Ñ¡Óà ................................................. 18

6.6.1 ÊäËÍÁ¿¼ÆËã ................................................. 18

7 ¼ì²â×°Öà ............................................................. 20

7.1 ´«¸ÐÆ÷ .......................................................... 20

7.1.1 ´«¸ÐÆ÷µÄ¶¨Òå .............................................. 20 7.1.2 ´«¸ÐÆ÷·ÖÀà ................................................ 21 7.2 Ñ¡ÔñÎÂʪ¶È´«¸ÐÆ÷ÐèҪעÒâµÄÎÊÌâ .................................. 22 7.3 ¶¨Ê±Æ÷ .......................................................... 23 ½á ÂÛ .................................................................. 25 Ö л .................................................................. 26 ¸½Â¼ .................................................................... 27 ²Î¿¼ÎÄÏ× ................................................................ 32

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