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Các điểm chính khi sử dụng PLC, bộ nhớ, ngoại vi, chu kỳ quét

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 C¸c ®iÓm chÝnh khi sö dông PLC bé nhí, ngo¹i vi, Chu kú quÐt A. Môc ®Ých yªu cÇu •   • !"#$%& '(! ) *+,-./0 B. ChuÈn bi : • 123+'(456176889:;1;98<;=>8>??0 • 1'#+!'('3@#8A'B'#+CD0 • )/#50 • =&+,-./'8- E-382+,-./FC0 • 1C!-+,-./0 C. Lý thuyÕt : I. Bé nhí cña PLC : 0 ?2%761+!2%G H%I#JK @%L ./ #!LM'!MN#  O0 ?2%;7618;;7618+!2%G 5@+,-./+(P  ) +,-./8K @@+#%L ./G  0 0 ?2%7>1+!2%2 K @%L ./!"#M .#  F0?2%!CQ #)P 8R4FC-'B )  .'Q F!-M$'STDF!MN#0 U0 VW4#X<*+4#.' +W%( Y&-Z[[8[[ 'B[6[86\\[8! .' 2%]G!8 C$8R8^'.8<'#+$^'. • %L&+!2)%8+# *2) 0 • =)%+R-F#('!2?C$5M   *_ • AFC$+R-F#('!2^'.`'B2R0 • AF^'.+R-F#('!2<'#+$^'. • 1a)%+# *2) W4#P G3G F## 0 • *!3.%#S?C$`VR`^'.`<'#+$^'.0 • bK %!'.FDF  Oc d0 ZK 2%X1a+'(5W4#!-ZK 2% e # + DFaK +!F#0 FCK +'(9c O%+'(fF#/-ZK e F#0AgR R g+4#!O@h* #.#2%!  05# K %DF-Z!K F#X 0 bK %!'.F O0 bK %.#  F 0 bK % F'- U0 bK %=$.8'#$.0 d0 bK %B4 II. ThiÕt bÞ ngo¹i vi : 0 ?2+,-./FC''+ O0 +,-./P C0 0 - E-3C!0 III. Ng«n ngò lËp tr×nh: i@+,-./'5+'( ) *+,-./F#8!.' - +,-./P CQ 5* +4#C@] *F+'( )  *50 0  ) * MjF >< •  ) *!C %(' 4(9F.'-FC( k2 !l#C./5Lj(#@' 4!L  ./#@+,-./P /%X O_ 6176X VW4#X 0 SF$+8G3%#!' 0 SF$+8G 3%#!'  0 SF$+8G 3%#.F 0 SF$+8G3%#.F 9cOX :0 SR:8G3%#!':0 m0 SRm8G3%#.Fm0 O0  ) *Y+4 89=+!FZ#+4b(F'- .R5L ./P 9=F#X <   67  ><6=  6f=  ;<HJ 0  ) e3+' Xn%F' 4 b(F'-0b'9:;1;9X Oo p q  m0 :0 m00  :0 A/O ) *3'  9F. 9'- V V r  9'- 9F V V ;< A/F A/L  ./ A/ F9Lj(#@+' 4 0L ./+,-./'1 0L ./+,-./9cO :0 :0 m0 m0 A/sL ./ IV. Chu kú quÐt vµ thêi gian quÐt iB@+!4DF5#t!.Q.(0 =#tX 1a#t j%+!4DFfF#X • ig++#!' • ='`'B+W • n"#M.F#.F • nF'-#50 =Q Fl42#t g+!="#Eu-#232 f82!L ./8Q F F'-0 ="#E@4-MG DF%FC]DF '(0 =.Q.(X1aQ@fS+!240 <'FB@!CR.'  -MvW.' .Q -F#X • =4#!'8.FCR##FC]F0 • =.2 ) ' #30 • MMk .Q.(' #@'4 #@+R0 1)M#t"#EDFL ./ MjF X  #t "#E A/O#t"#EDF V. C¸c b ¬c lËp tr×nh cho PLC :   9F _03%&l sL ./v w o0V@.F3 Vv 0(C43 0s#sL ./8 ! F' 9FsL  ./ 0=/@#xCR##)   4 O04R] !'.F8 g 0Z] !'.F U0<l +s#jsL ./ d0<&+s#jF  Mj F 0 y0,-./ MjF  !'  sL ./v w c01)-z sL ./ @.F- <# i# 9F 9F= Một số l u khi thực hiện các b ớc lập trình cho PLC: Bớc 1 :=/@#xCR##) 4.' %!C Q+,-./-M/ @#xCR##) 4!-M]N# CR##{#/ .' lB! QB! S"#FZCR##{ CR##@l44B.F/Q ) R#+R0 Bớc 2:4RCD] !'.F8] l.*8-.@ 43 00!g53#!'.F+%L'BP $'CR##0 Bớc 3 :Z] !'.F' #CRhR#ZD #CRh@ #,4'4+,-./8$'|@.F-4+aF#X Phân cổng vào ra theo chức năng yêu cầuX#!'32 F'8#!'>F+' 8#!'+' 8-Mv %#!'G DF Phân cổng vào ra có dụng ý:$'R g8'B$'./l2 @ , M 4#'DF0}$'|-4+a !}+,-./0 Bớc 7X(C)-z @.FL ./ M('.F,-4#L llF!'#!' ~$"#M#.F.R!.R-)-z 09'%+W #C0 Bớc 8,9 :3%&l8-M@.Fhh- E-3000 $'v Lj #CR+W8MM'- #j-l4v 00 MM'hh4- #j--Mv %Lj #CR+W00 CR##@MM') ZC #C@'&0 Bớc 10 :(C'!243 $'%F#X iMM'hh43 3v iMM'hh43 L8#+lE(C0 (Ch-0 (Cl2 0 (Cl2 '!43 0 Bớc 11:?! F'8#L ./8X =l4! F'$'v D4(C@.F8(C 48#C@ F') 48DM'./8M'!00! -RF F! F'$'CR##0 O • #L ./8%( \+$8€%;\7618=!+4#0 1. S¬ ®å l¾p r¸p PLC víi c¸c thiÕt bÞ cña hÖ ®iÒu khiÓn :  1> O<7 CH0 COM + 00 01 02 03 04 05 06 07 08 09 10 11 rOU CH10 00 01 02 03 04 05 06 07 Com Com Com Com Com Com Com Com rOUb b V VO 7 7O V VU #OA=A=OA=??O==O= f 9Lj E-31>O<7%&DF43 # @.' 5X i#!' jX • v#@ • ) h!./A=8A=O • M • ) h=8=O8= i#.F j-X • 'F'.V8VO • 7$+$X787O • i•'<8<O000 4. S¬ ®å l¾p r¸p Modul d¹y häc PLC tèi thiÓu b»ng PLC CPM1A: U 1> O<7 CH0 COM 00 01 02 03 04 05 06 07 08 09 10 11 rOU CH10 00 01 02 03 04 05 06 07 Com Com Com Com Com Com Com Com rOUb b 7 7 7O 7U 7U 7d 7y 7c 9Lj+h-.-1'#+(C'3@#P 1>O<7X  i#!' jX • ) h=8=8=O8=8=U8=d8=y8=c i#.F j-'B+!.$+$'B+!•'X • 7$+$X 78787O8787U87d87y87c • i•'X <8<8<O8<8<U8<d8<y8<c0 6. S¬ ®å l¾p r¸p Modul d¹y häc tèi thiÓu b»ng PLC - S7-200-CPU215: d 9Lj E-3'#+(Cg3@#9cOX i#!' jX • ) hX =8=8=O8=8=U8=d8=y8=c =8=8=O8=8=U8=d0 i#.F j-'B+!.$+$8'B+!•'X • 7$+$X 78787O8787U87d87y87c • i•'X <8<8<O8<8<U8<d8<y8<c0 D. C¸c bíc thùc hµnh 0 =/@##- #j'84-8{ 4w0 O0 =/@# E-3#!'%&#@8‚ #{ 4FC"#F-@.' .Q -3#61 # %L -rOUb8!3%Z-0 0 =/@# E-3#.F%&#@8‚ #{ 4FC"#F-@.' .Q -3#61 # %L -rOUb8!3%Z-0 U0 =.Q -M5#.F E-=.F'.!/#!'-M 3!'w d0 nM(F'Q FC3#!'61# %L -8#@ /w0 y0 3ZC!' #j!&#@0MMM' hh4- #j--Mv %Lj 4CR##@ MM')  ZC #C@'&0 c0 - #j'!43 0 _0 iBk27f o0 iF4#!'P ,h) h#!'!N$• '4#'.R#!'0 0=.Q -#!'3%#8'B) h! .//2 !'v'BM@!./0 0=.Q -#!'3%MƒF4#!'# M!N$•'4#'.R#!'0 O0Vvl!8= #j8.„z&8''#'(0 E. C©u hái cuèi bµi häc 0 ZlF# *FM#.F E-=.F'.!8 3%0 O0 M'4#.F'!'w0 0 #W /.' +h-B0 U0 =&+,-./FCK @+! /w d0 =& E-3%CK €+! /w y . :3% &l8-M@.Fhh- E -30 00 $'v Lj #CR+W8MM'- #j-l4v 00 MM'hh4- #j--Mv %Lj #CR+W00 CR##@MM') ZC #C@'&0 Bớc 10 :(C'!2 43 $'%F#X iMM'hh 43 3v iMM'hh 43 L8#+lE(C0 . !'.F8] l.*8-.@ 43 00!g 53# !'.F+%L'BP $'CR##0 Bớc 3 :Z] !'.F' #CRhR#ZD #CRh@ #,4'4+,-./8$'|@.F-4+aF#X Phân cổng vào ra theo chức năng yêu cầuX#!&apos ;32 F'8#!'>F+'. SF$+8G 3 %#!' 0 SF$+8G  3 %#!'  0 SF$+8G 3 %#.F 0 SF$+8G 3 %#.F 9cOX :0

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