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Project (PLCs) Ladder diagram
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(PLC) PLC (Programmable Logic Controllers) 1960 . , . : , , , .. .
PLC PLC : () (Q) , , 1 0 , .
PLC , , , . . , , :Programmable.
PLC BASIC, FORTRAN .. , , IEC1131-3. .
PLC , . , . PLC , hardware. , PLC . PLCs . , , . , , . . (AND, OR, NOT ..). .
LADDER DIAGRAM (LAD) . CONTROL SYSTEM FLOWCHART(C.S.F) FUNCTION CHART (FUC) l . STATEMENT LIST (STL) BASIC.
LADDER DIAGRAM(LAD), PLC, PLC.
PLC
- . - . - . - - KARNAUGH BOOLE. - LADDER . - FUNCTION CHART. - -. - , PLC.
PLC PLC, . PLC . , , . ( ) ( ..). PLC , AND, OR XOR. , XOR . PLC , RR(Result Register). , (0 1) . RR . RR. , 128 .
Ladder Ladder PLC. ladder () . (,, , ..), , . , , , . , Ladder. , () ()
Ladder () Ladder rungs, , - , , .
rung : PLC (, ,) PLC (, ..) (, ..) (
Ladder Ladder . . Ladder, . AC DC 6-480V. . stop start. stop start.
, . , .. .
Ladder () . stop, . : , . , . , .
start, . : . , , .
Ladder () Ladder . , . , , : /
: (Normally Open Contact): : test zone, action zone. ( 0): ( 1): : PLC, bits.
: (Normally Closed Contact):: test zone, action zone. ( 1): ( 0): : PLC, bits.
: (Rising Edge Contact):: test zone, action zone. ( 0): ( 1): : 1 PLC. 1 PLC. P
: (Falling Edge Contact):: test zone, action zone. ( 0): ( 1): : 1 PLC. 1 PLC.
N
: (Horizontal Connector):: Ladder.
: (Down Connector):: Ladder.
: (Compare block):: test zone, action zone.: .
: (Coil):: action zone.
( 0): ( 1): : PLC, bits.( )
: (Inverse Coil):: action zone.
( 1): ( 0): : PLC, bits.( )
: (Set Coil):: action zone.
( 0): ( 1): : . , () , . , RESET. Set PLC, bits.
( S )
: (Reset Coil):: action zone.
( 0): ( 1): : . , . Set PLC, bits.
1 ( )
:
S , .
I1010110
2 ( OR) : S1 S2 .
S1S2010000III0IIII
3 ( EXCLUSIVE OR) : L . OFF ON.
I1I201000011101110
4 ON DELAY
S1 S2 1. t, , 1 H1.
5 . .
. . , , , .
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