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)(PLC

PLC

:

. . PLC , , PLC . PLC Siemens 5 STEP . PLC

PLC . PLC , , , . PLC : PLC . . PLC , , .

A 0 0 1 1

B 0 1 0 1 B 0 1 0 1

A B 0 0 0 1A+ B 0 0 0 1

PLC PLC .OFF Shut False

: : :

ON Open True

: : :

A 0 0 1 1

) Limit switch (Proximity switch ) (ON ) (OFF . ) (Boolean .1=A 0=A

, .A) Commutative Laws A +B =B +A A B = B A B) Associated Laws A + (B + C ) = ( A + B ) + C

.A 1 0

A ( B C ) = ( A B ) C C) Distributive Laws A ( B + C ) = A B + A C

A 0 1

) A + (B C ) = ( A + B ) ( A + C D) Absorption Laws A (A + B ) = A A + (A B ) = A E) Involution A=A

). (N.O ). (N.C . A A . "" ) (AND "" ) (OR . "" ) (AND "" ) (OR

)F) Inversion Laws (De Morgans Theorem (A + B ) = A B

(A B ) = A + B NAND A B NOR A + B . PLC , PLC . )( PLC . PLC . PLC N.O N.C . PLC PLC PLC . , PLC . PLC . PLC . PLC 5 IN 7CR )7 (Control Relay . )( PLC . PLC , .

: PLC

. . .N.O

.

. N.C

.

. PLC, Timers ,Counters ... , . )Statement List (STL

. PLC STL . STL .

)Load (LD )Load Not (LDN AND AND NOT OR OR NOT OUT

PLC

STL . . . . N.O . . 2 sw1,sw . .PLC PLC PLC . , . PLC PLC .

PLC

. PLC , , ... RAM, ROM

PLC

PLC .

EPROM EEPROM . (Programmer) PG PC PLC . PG LCD , .

PLC

PLC

PLC ) (register . ) ,(nibble ) (byte ) .(word

PLC ) ,(CPU ) (Memory . PLC . )( )1,0( , . PLC CPU . CPU

. PLC . CPU . LED . TTL .

) (flag . 0

1 . CPU CPU

. . ) (auxiliary relay PLC . . PLC . . . . ,PLC ) (Binary Counter . , . PLC ) ( . . , ,Timers PLC . ) (Clock . PLC . PLC .

. PLC . . .

. ) (Darlington pair .

PLC

, : . . PLC .

) (a ) (b . Triac AC

. . . ) ( ZCC . .

NPN

PLC

, . STL PLC PLC . PLC , . PLC . . IN CR AR T C

. , ,LVDT , ... PLC . A/D PLC . PLC .

( . 3CR1,CR2,CR

3) IN1,IN2,IN ( .

1 CR ) 1 CR (, 1 AR PLC . ( CPU . . , / / . ) .( ( ) ( . ) ( ) ( .

( )(Latching

. ) (Push-button .

(a (b

1 IN 1 CR 1 IN 1IN . 2 IN . 2 IN 1 CR . , PLC .

Delay ON, Default . .

( )(Delay On

. , .

1 T 1 IN . D-ON . 1 IN 1 T 1 IN 1 CR 2 CR . .

( )(Delay OFF

,Delay ON PLC Default . ) (b Delay ON . ( . PLC . .

3 IN . 2 IN1,IN . 0 AR 3 AR 1 CR4CR .

( , . . )2 (IN )1(IN ) ( . 1 C , . 1 CR 1 IN .

( .

( , . 3 AR0-AR . . )( , . . 0 AR , ) (reset . 1 ,IN 0 AR . 2 IN

"" AND "" OR

1IN 4 IN "" )""( 5" IN" )""( 1 CR. .

. STL .

"" ""

1 CR 2 CR 1 IN . 1 IN 1 CR 1 CR2CR . 1 ST .

) (Function Block , . . .

AR

1 IN 1 T ) (D-ON 1 CR , 2 IN , .

. 1 AR . 3 IN2, IN , .

2IN

AR

D-ON . . 1 IN 1T . 1 CR . 1 T 2 T

. 2 IN 1 C .

1IN

. 2 T 1 T 2 T1 ,T .

1CR

1T

1 CR D-OFF D-OFF

3 CR1,CR2,CR .

D-OFF

D-ON D-Off. .

D-OFF

D-OFF

, 1 ,IN 1 CR 1 T , 2 CR .

1 IN . 1 CR 1 T . 1 T

PLC . , . 2 sw1,sw . , * . 1 ,S 2 S . 2 S1,S ) CR1,CR2,PLC (Snubber .

1 CR 1 CR 2 T . 2 T 2 CR . 1 CR 4CR

. 1 IN 0 AR 0 AR , 2 IN . 01 AR 0 AR . 3IN 0 AR . 2 IN 0AR 1 AR 1 CR 4 CR 2 IN .

. 2 IN .

. 2 sw1,sw ) (push-button 1 CR .

A,B,C

A+ A- B+ B- C+ C- repeat 1 sw 1 IN . . . D-OFF D-ON . . )(

2 IN1, IN .

ON/OFF

START STOP . ... . PLC . PLC . START . N.O STOP . N.C .

PLC ON/OFF . . .

PLC . PLC . PLC . .

. :

ON/OFF .

, A B . . F P . s B . . 1 MS . .

ON/OFF

/ P2RG . + + + , X ON/OFF . .

) (Proximity switch . PLC .

, X . PLC .

X + G closed + G open X repeat PLC :

. 1 MS 2 IN , 1 C 1 CR F . 2 C . 1 C2 MS , 2 C1,C 1 CR F 1 IN .

. .

1CR

+X X-

3CR 4CR

+Z Z-

5CR 6CR

+

7CR 8CR

G closed G open

2CR

PLC

. D-OFF , .

X

, . .

H H .

. H . , . . . PLC .

. 2 P1,P . 3 P . 4 P . .

2 CR ) (. 1C 2 CR1,CR 1T 1 C . 2 IN .

4 P . N.C . 1 P 2 P . 1 T 2 P 1 T . 2 CR 3 P 2 T . 1 C 4 P . 7 IN .

: . . . 4 P . .

PLC

. . 5 STEP Siemens .

PLC