THUCHANH DKLT S7200

TI LI U TH C HNH

U KHI N L P TRNH

: PLC S7-200

1.1.

SBR:

cng c tnh

.

cng trong

trnh

theo di, tra v

trnh.

SBR:

SBR trnh trong

n khi .

C SBR Main hay SBR khc

Khi khng th cc gi trong

SBR nguyn.

SBR c 2 :

trnh con ton :

I,Q,V,M,SM,T,C,ACC

trnh con : L

SBR ton :

I,Q,V,M,SM,T,C, ACC.

Cch :

trnh con, tn theo

Khai bo

trnh con theo yu

tra trnh

khi .

trnh con v tn

tn

Khai bo

SBR : L

Cch :

trnh con, tn theo

Khai bo .

con trnh theo yu

Khai bo trong v trnh

trong MAIN

trnh con v tn

tn

tn v trnh

trong SBR

Khai bo v trnh cho Main

: PLC S7-200

1.2.

INT: l trnh thi

trnh khc l trnh

hay trnh .

.

Khi xy ra cng lc th trnh

theo tin.

Khi th khng

khc d c tin cao .

trnh nn trnh cng

cng cng .

yu cch nhanh chng

v l lm .

Cc trong PLC.

vo ra: vo ra c cc sau.

Khi c xy ra ng vo PLC.

Khi pht xung PTO pht hon thnh xung.

Khi cao c gi gi .

gian: xy ra sau gian

bao :

: xy ra theo gian .

Timer: xy ra khi gi Timer

gi

Cc trong PLC.

thng: xy ra khi c

thng PLC v

khc.

V : xy ra khi thc qu trnh

qua

thng PLC.

v trong PLC.

: vo

CPU, ty vo dng

CPU m

hay t.

Cc trong PLC.

Gn INT EVNT, cho php INT

INT INT0

INT1

INT2

INTn

INT127

EVNT

0

1

n

33

INT EVNT

INT INT0

INT1

INT2

INTn

INT127

EVNT

0

1

n

33

ton

INT INT0

INT1

INT2

INTn

INT127

EVNT

0

1

n

33

Thot trnh

INT INT0

INT_n

instruction1

Reti

Instruction_n

Reti

Main routine

instruction1

instruction2

n

Instruction_n

Event occurs

End INT

End INT

EX1: I0.0 gi QB0 1

Khi thay ng vo, thay EVNT

EX2: Sau gian 200mS QB0 1,

Khi thay T1, thay EVNT:11

EX3: Sau gian 1 giy, gi QB0 1,

gian

Khi thay T96, thay EVNT:22

EX4: Sau gian 1 giy, gi analog

ng vo AIW0, vo MW0

dng gian

: PLC S7-200

1.3.

card giao tn vo/ra analog PLC

ng vo tn analog

giao ng ra tn analog

tn vo/ra analog module analog

Thermocouple v RTD module analog

tn ng ra cho module analog

tn vo v cho module analog EM231

tn vo v cho module analog EM235

Gi ng vo module analog

Khi tn vo thang th gi c gi Tn : Gi 0 +32000 Tn : Gi -32000 +32000

gi ng vo module analog

Ty vo tn ng vo vo knh no m gi vo

V : Knh A: AIW0; Knh B: AIW2 Knh C: AIW4; Knh

Gi ng ra module analog

Ty vo tn ng ra knh no m gi vo

V : Knh A: AQW0; Knh B: AQW2 Knh C: AQW4; Knh

EX1: Module analog lm tn p

Xc module analog ng vo/ra Xc cc tn vo/ra cc knh Xc cc Switch tn vo v module analog (

tn vo l p) tn p ng vo knh A, dng tn analog ng

vo, download PLC S7200

Thay khc gi trnh tn ra gi p ng vo theo volt v vo vng MW0

EX2: Module analog lm tn dng Xc module analog ng vo/ra Xc cc tn vo/ra cc knh Xc cc Switch tn vo v

module analog ( tn vo l dng) siu m (xem datasheet) tn ng vo

knh A, dng tn analog ng vo, download S7200

Thay cch tc thay gi .

trnh tn cch theo cm, vo vng VW100

: PLC S7-200

1.4.

PTO(Pulse Train Output): Pht xung vung c cao, Servo Motor hay Step Motor.

PWM(Pulse Wide Modulation): Pht xung PWM , DC hay

PTO PWM

PTO - PWM TRONG S7200

S7200 2 ng ra Q0.0 v Q0.1 pht xung cao PTO:

Chu thay 50us 65535us hay 2ms 65535ms xung pht 1 4,294,967,295.

2 pht xung: Single: khng thay ; Multiple: thay

PWM Chu thay 50us 65535us hay 2ms 65535ms.

xung 0 65535uS hay 0 65535mS.

PTO pht xung lin

PTO, PWM TRONG S7200

Vng dng khai bo chu , , xung, v offset vng V

PTO, PWM TRONG S7200

gi cho byte

PHT PTO TRONG S7200

Cc PTO pht xung Single).

chu qut tin trnh con PLS. Trong trnh con cc

cng sau. gi cho byte pht theo

yu . gi gian chu . gi xung pht.

Gn trnh . Cho php .

PLS pht xung.

PHT PTO TRONG S7200

VD1: Pht xung PTO 1Hz ng ra Q0.0

trnh con Main

PHT PTO TRONG S7200

trnh con PTO pht xung

16#8D

PHT PTO TRONG S7200

trnh cho php pht

trnh pht

VD2: trnh PTO pht xung theo yu :

START, pht 20 xung 1hZ ng ra Q0.0. VD3:

trnh PTO pht xung theo yu : START, pht 20 xung 1hZ ng ra Q0.1.

VD4:

trnh PTO pht xung Q0.0 theo yu . START: Pht xung PTO c chu 1000ms Q0.0

Up: Chu thm 100ms, khng qu 10.000ms

VD4: trnh PTO pht xung theo yu

: START, pht xung hnh sau.

Cc PTO pht xung (Multiple).

Vng dng khai bo thng cho cc

xung l vng V. xung 8 byte khai bo thng vng V ty vo

offset. offset trong vng (SMW168: Q0.0 v SMW178: Q0.1).

Byte tin trong vng V pht.

Cc PTO pht xung (Single).

VD1: Pht 3 xung hnh

trnh chnh

trnh con Main

gi cho byte pht 3 xung

trnh con pht 3 xung

gi offset cho vng V

pht

chu cho I

trnh con pht 3 xung

thin chu cho I

xung pht cho I

chu cho II

trnh con pht 3 xung

thin chu cho II

xung pht cho II

chu cho III

trnh con pht 3 xung

thin chu cho III

xung pht cho III

Khai bo cho PT0

trnh con pht 3 xung

Cho php

Cho php pht xung

gi cho byte pht

trnh pht xung Multiple_segment

thi PLS byte

trnh pht xung theo yu : START, pht xung ng ra Q0.0.

STOP, pht

PHT XUNG PWM TRONG S7200

Cc PWM pht xung.

chu qut tin trnh con PLS. Trong trnh con

cc cng sau. gi cho byte pht

theo yu . gi gian chu . gi gian xung . PLS pht xung.

PHT XUNG PWM TRONG S7200

VD1: Pht xung PWM 1hZ ng ra Q0.1

trnh con Main

PHT PWM TRONG S7200

gi cho byte pht

trnh con PWM pht xung

gi gian chu xung

gi gian xung

Cho php pht xung

VD2: trnh pht xung PWM theo yu :

START, pht xung 1hZ, chu 30% ng ra Q0.0.

VD3:

trnh pht xung PWM theo yu : START, pht xung 2hZ ng ra Q0.1.

xung 60% chu xung VD4:

trnh pht xung Q0.0 theo yu . START: Pht xung PWM c chu 1000ms Q0.0,

20% chu . Up: Chu thm 100ms, max 1000ms.

: PLC S7-200

1.5.

CAO(HIGH SPEED COUNTER:HSC)

HSC: cao m khng .

Vd: quay 1200R/M, encoder c xung 1000P/R

= 1200*1000/60 = 200Khz, chu = 50 micro giy


HSC v

Ng vo

HC0 I0.0 30 kHz 221,222,224,224XP,226

HC1 I0.6 30 kHz 221,222,224,224XP,226

HC2 I1.2 30 kHz 221,222,224,224XP,226

HC3 I0.1 30 kHz 221,222,224,224XP,226

HC4 I0.3 200 kHz 224XP

HC5 I0.4 200 kHz 224XP


Vng dng khai bo HSC

STT Ch thch

1 HSC0 HSC 10 byte

2 HSC1 SMB46 SMB55

3 HSC2

4 HSC3

5 HSC4

6 HSC5


cc byte vng

STT Vng khai bo Ch thch

1 SMB36,46,56,136,146,156 Byte thi

2 SMB37,47,57,137,147,157 Byte

3 SMD38,48,58,138,148,158 gi ban

4 SMD42,52,62,142,152,162 gi

Cc nhau nn trong ti trnh by HC2.


Cc Mode HSC

CAO: HC2

Byte thi

SM56.0 Khng

SM56.1 Khng

SM56.2 Khng

SM56.3 Khng

SM56.4 Khng

SM56.5 ln .

SM56.6 so snh ,

SM56.7 so snh ,

CV

CAO: HC2

Byte

SM57.0

SM57.1

SM57.2 HSC2 (x1 hay x4 - mode 9, 10,11)

SM57.3 : 0 li, 1 : ln

SM57.4

SM57.5

0: khng cho php, 1: cho php

SM57.6 Cho php gi ,

0: khng cho php, 1: cho php

SM57.7 1- cho php kch HSC2, 0 cho php HSC2

CAO: HC2

reset, start v

HSC1 HSC2 Ghi ch

SM47.0 SM57.0

SM47.1 SM57.1

SM47.2 SM57.2 1: 1X gi

: 4X c tc khi mode 9,10,11

CAO: HC2

Vng gi ban , gi

Gi ban Ghi ch

HSC0 SMD38 SMD42

HSC1 SMD48 SMD52

HSC2 SMD58 SMD62

HSC3 SMD148 SMD142

HSC4 SMD158 SMD152

HSC5 SMD168 SMD162

CAO: HC2

Cc HSC

Dng chu qut tin(SM0.1) trnh con . Trong trnh con cc cng sau .

gi cho byte . Gn Mode dng HDEF

gi . gi .

Gn trnh dng ATCH .

Cho php dng ENI. Cho php HSC cch dng HSC.

CAO: HC2

EX: HC0 Mode 0

Dng chu qut tin(SM0.1) trnh con . Trong trnh con cc cng sau .

gi cho byte .

Gn Mode dng HDEF

gi .

gi .

Gn trnh dng ATCH .

Cho php dng ENI.

Cho php HSC cch dng HSC.

trnh chnh

trnh con HSC

trnh con

gi cho byte

mode cho

gi ban

gi

Gn INT_0

Cho php

Cho php HSC

trnh

gi

gi cho byte

Cho php HSC

xt: HC0 thm 1 c xung ng vo

I0.0 Khi HSC thi th gi byte

, gi ban , gi , mode .

: PLC S7-200

1.6.

-

-200.

- C

-

-

Freeport,

SMB30 [port0] SMB130 [port 1].

Cc

.

v c

-

SM0.0: lun ON

SM0.1: ON

SM0.2: ON

SM0.3: ON trong

SM0.4:

SM0.5:

SM0.6: vng qut ny ON, vng

SM0.7:

On RUN,

SMB0: Status Byte

SMB2: Freeport

SMB2.

Freeport.

( 0 = No Error , 1= Error )

SMB30 V SMB130

SMB86, SMB 186 V SMB87, SMB187

qua cp PPI. tin:

1.

1.

SMB94 cho port 0, SMB194 cho port 1.

0, SMB188 cho port 1.

SMB189 cho port 1. .

PLC:

bit, No Parity, 1 stop bit. Byte

Byte xc

.

Documents

THUCHANH DKLT S7200