西门子PLC培训教材

Key

FeaturesThe

HSCE2

is

a

multi-channel

module

whichhelps

reduce

systemcost

and

chassis/panel

size.

On

a

per

channel

basis,

the

HSCE2

is

17%

lessthan

the

HSCEfor2

channel

applications

and

59%

less

for

four

channel

applications.The

module

is

compatible

witha

variety

of

input

devices

and

signals

includingquadrature

encoder,

differential

line

driver,

single-ended

sourcing,

single-ended

open

collector,

5

Vdc,

12

Vdc,

24Vdc

signalsKey

functional

features

include:up

to1

MHzfrequency

response600

usec.

typical

thruput

to

BP

and

on-board

outputs24

bit

count

capabilityZ/gate

provides

hold,

store,

continue

count

capabilityAdditional

features

include:4physical

outputs

and

4soft

outputs

whichcan

be

tied

to

any

of

4countersElectronically

protected

outputs

withovercurrent

LED

indication

and

status

bitThe

HSCE2

is

compatible

with5/03

thru

5/05

CPUs

(class4

full

functionality)

and

5/01,

5/02,

and

1747-ASB

in

aremote

I/O

chassis

(class

1limited

functionality)西门子

PLC教程S7-200/S7-300主要内容•••––

S7-200

PLC硬件特点和系统配置编程特点网络支持和特点S7-300

PLC系统硬件和网络介绍和网络组态•硬件组态编程–

西门子OPC配置–

铝厂PLC技术特点和实例希望铝业PLC网络结构华能铝业PLC网络结构The

HSCE2

provides2

sets

of

+/-

A,B,Z

input

terminals

which

are

compatible

with5/12/24

Vdc

input

signals,

quadrature,

differential,

or

single-ended.

An

on-board

jumper

is

provided

for

each

channel

for

choosing

between

two

voltage

ranges,

4.2-12

volts

or10-30

volts.

Pull-upresistors

are

only

required

for

interfacing

to

open

collector

inputs.There

are

three

operating

modes

to

choose

fromproviding

two,

three,

orfour

channel

operation.

These

operating

modes

are

selected

withconfiguration/programming

blocks

that

are

sent

to

module.Freq.

Response

varies

depending

on

X

counting

mode.250khz

withX4

counting500khz

withX2

counting1MHzall

otherThe

gate/Z

reset

channel

provides

counter

reset

functionality

and

also

store/hold/continue

capabilitysimilar

to

1771-VHSC.

This

functionalityallows

the

count

value

to

be

stored

and

made

available

to

backplane

with

a

Z

input

off-on

transitionwhile

counting

continues.

More

on

thisfunctionality

later.西门子

PLC教程S7-200/S7-300†S7-200硬件特点和系统配置†s7-200系列可编程控制器是西门子PLC产品中的小型一组，即为Micro

PLC中央处理单元

CPU

221、CPU222、CPU224、CPU226扩展模块The

following

count

configurations

are

available

with

the

HSCE2

and

are

selected

via

the

configuration

programming

blocks.Pulse/

External

Direction-B

input

controls

up/downcounting.Pulse

/

Internal

Direction-internal

bit

controls

up/down

counting.Up

and

Down

Pulses-A

pulses

count

up.

B

pulses

count

down.X1

Quadrature

Encoder-Counts

rising

edgeof

A

for

up

counts,

falling

edgeof

A

for

down

counts.

A/B

phase

angle

determines

up/downcounting.X2

Quadrature

Encoder-same

as

X1.

Rising

and

falling

edges

of

A

counted.X4

Quadrature

Encoder-same

as

X1.

Rising

and

falling

edges

of

Aand

B

counted.The

following

gate/reset

capabilityis

available

with

the

HSCE2.Soft

Preset.

The

counter

is

preset

when

the

matchingPreset

bit

in

the

output

image

table

is

set.Store/Continue.

The

count

value

is

stored

and

made

available

to

backplane

with

aZ

input

off-on

transition.

Counting

continues.Store/Hold/Resume.

This

mode

is

identical

to

the

Store/Continue

mode

except

that

the

counter

value

is

held

as

long

as

the

Z

input

is

active.Store/Preset/Hold/Resume.

Identical

operation

to

the

Store/Hold/Resume

mode

except

that

the

counter

is

set

to

its

programmed

Preset

Valueby

the

Z

input.Store/Preset/Start.

Identical

operation

to

the

Store/Continue

mode

except

that

the

counter

is

set

to

its

Preset

Value

by

the

Z

input.西门子

PLC教程S7-200/S7-300Max

counts:

+/-

8,388,607

(24

bit)

5/03

and

greater

CPUs+/-

32,767

(16

bit)

5/01,

5/02

CPUs,

and

1747-ASBCountdata

is

always

presented

in

integer

format.

For

values

over

32,768,

two

words

are

used

to

store

the

value.

A

compute

instruction

can

beused

for

converting

the

integer

words

to

floating

pt.

Rate

values

can

be

setup

as

either

integer

or

floating

point

data

whenconfiguring

the

moduleset

up

block.Counter

TypesRing

Counter-count

rolls

over

frommax

to

min.Linear

Counter-overflow

bit

set

above

max.,

below

min.Rate

MeasurementThe

HSCE2

performs

rate

calculationapprox.

every

16

msec.

and

provides

+/-.005%accuracy

when

using

floating

point

data

format.

Ratesbelow

1

Hz

are

not

supported

and

the

rate

period

(time

interval

for

countingpulses)

is

not

selectable.Note:

The

existing

HSCE

allows

the

user

to

choose

the

rate

period

but

provides

less

accuracy

at

+/-2Hz.Same

channel

can

be

used

for

countingorrate

calculationElapsed

time

between

counts

can

be

calculated

for

freq.

Between

1Hz

and

60HzRange

Control16

ranges

per

module

are

available

for

controlling

outputs

based

on

count

and/or

rate

data.Output

ControlAll

8

outputs(4

physical,

4soft)

can

be

controlled

by

any

or

all

of

the

counters.西门子

PLC教程S7-200/S7-300CounterOperating

ModesMode

1:

Only

Counters

1

and

2

are

available.Inputs

A1,

B1,

and

Z1

are

assigned

to

counter

1.Inputs

A2,

B2,

and

Z2

are

assigned

to

counter

2.Mode

2:

Only

Counters

1,

2,

and

3

are

available.

Inputs

A1,

B1,

andZ1

are

assigned

to

Counter

1.

Inputs

A2

andZ2

are

assigned

to

Counter

2.Input

B2

is

assigned

to

Counter

3.Mode

3:

All

four

counters

are

available.Inputs

A1

and

Z1

are

assigned

to

Counter

1.Inputs

A2

and

Z2

are

assigned

to

Counter

2.Input

B1

is

assigned

to

Counter

3.Input

B2

is

assigned

to

Counter

4.西门子

PLC教程S7-200/S7-300CPU

226Six

programming

blocks,

eight

words

each1.

Module

Setup-basic

configuration

and

range

allocation2.

Counter

Configuration-counter

type,

input

config.,

gate/preset,

rate

value

format,

rate

value

update

period3.

Min/Max

Count

Value-setsup

min,

max,

and

presets

values

for

each

counter.

Presets

can

be

adjusted

on

the

fly4.

Min/MaxRate

Value-sets

up

min

and

maxrates

values

for

each

counter.

Min/max

values

can

be

adjusted

on

the

fly5.

Programranges-can

be

adjusted

on

the

fly.

Sets

up

0-16

count

or

rate

ranges

for

automatic

control

of

outputs6.

Counter

Control-can

be

adjusted

on

the

fly,

data

examined

every

scan

if

block

enabled.

Provides

counter

enable/disable,soft

preset,

internaldirection,

output

ON

mask,

output

OFF

mask,

count/rate

selection

for

class

1,

range

enable/disableAll

programming

blocks

(except

counter

control)

are

transferred

to

module

via

programming

cycle

controlled

by

handshaking

bitsDebugmode

echoes

back

programming

block

data

for

review

and

troubleshooting西门子

PLC教程S7-200/S7-300扩展模块注意！西门子

PLC教程S7-200/S7-300S7-200编程特点主机与设备连接时的注意事项编程的基本概念Operating

class

is

selected

with

programming

software

via

I/O

configurationClass

1

operationcompatible

with

all

SLC

500

CPUs

and

the

1747-ASBRIO

adapterprovides

8

input

words

for

status

and

8

output

words

for

configurationprovides

16

bit

(+/-32,768)

max.

count

capabilityClass

4

operationcompatible

with5/03,

5/04,

AND

5/05

CPUsprovides

23

input

words

for

status

and

8

output

words

for

configurationprovides

24

bit

(+/-8,388,607)

max.

count

capability西门子

PLC教程S7-200/S7-300编程的基本概念基本数据类型西门子

PLC教程S7-200/S7-300西门子

PLC教程S7-200/S7-300变量类型西门子

PLC教程S7-200/S7-300This

is

an

example

of

status

data

provided

for

the

HSCE2

whenconfigured

for

class

4

(23

in/8

out).Word

0Bit

0

thru

7-output

status

data.Bit

8,

9-indicates

operating

modeBit

11

(FB1)-e-fuse

statusBit12-(DEBUG)-this

bit

is

set

when

debug

mode

is

active.

In

debug

mode

the

input

data

file

echoes

back

programming

block

data

for

reviewand

troubleshooting.Bit

13

(PERR)-indicates

programming

error.Bit

14

(MFLT)-indicates

module

fault

has

occurred.Bit

15

(ACK)-makes0

to

1

transition

whenprogramming

data

has

been

received

by

module.Word

1-Counter

1

and

2

status

bytes:

indicates

whether

counter

is

running,

stopped,

over/under

flow

bit,

count

or

rate

data.Word

2-Counter

1count

value

(upper

4digits)Word

3-Counter

1count

value

(lower

3digits)Word

4

and5-Counter

1

rate

value

(can

be

configured

for

integerorfloating

pt.)Word

6-Counter

1

capture

value

(upper

4

digits)Word

7-Counter

1

capture

value

(lower

3digits)Word

8-Counter

2count

value

(upper

4digits)Word

9-Counter

2count

value

(lower

3digits)Word

10

and

11-Counter

2

rate

value

(can

be

configured

for

integer

orfloating

pt.)Word

12-Counter

2

capture

value

(upper

4

digits)Word

13-Counter

2

capture

value

(lower

3

digits)Word

14-Counter

3

and

4

status

bytes:

indicates

whether

counter

is

running,

stopped,

over/under

flow

bit,

count

or

rate

data.Word

15-Counter

3

count

value

(upper

4

digits)Word

16-Counter

3

count

value

(lower

3

digits)Word

17

and

18-Counter

3

rate

value

(can

be

configured

for

integer

orfloating

pt.)No

capture

values

available

for

counters

3

and4西门子

PLC教程S7-200/S7-300程序的组织块西门子

PLC教程S7-200/S7-300中断事件子程序调用西门子

PLC教程S7-200/S7-300程序举例网络特点S

7-200

PLC支持PPI、MPI、自由口通讯方式(例如：编写用户程序用做MODBUS

RTU子站)EM

277支持PROFIBUS-DP通讯西门子

PLC教程S7-200/S7-300西门子

PLC教程S7-200/S7-300西门子

PLC教程S7-200/S7-300西门子

PLC教程S7-200/S7-300工业以太网CP243-1通讯处理器连接工业以太网

10/100

Mbit/s

半工/全双工通讯

RJ45接口TCP/IP使用Step

7-Micro/WIN通过工业以太网配置和远程编程服务（上载、下载程序，监视状态）通过工业以太网连接其他的CPU(PUT,GET,Client/Server,8个连接)通过S

7-OPC在计算机上处理数据更换板卡，无需重新编程，配置。·应用CP

243-1通讯处理器可以让S

7-200连入以太网。使用Step

7-Micro/WIN通过工业以太网配置和远程编程服务。S

7-200控制器通过以太网与其他S

7-200交换数据。使用S

7-OPC，PC应用可以存取S

7-200的数据。这样过程数据可以轻松被存储和编辑。·设计CP

243-1提供所有S

7-200设计的优势：紧凑的设计连接外部24

V直流电源的端子模块LED状态显示可以卡装在DIN导轨或直接安装在墙上连接以太网的RJ45接口（10/100

Mbit/s全双工/单工通讯，自适应）·功能通过工业以太网，CP

243-1独立操控数据。通讯基于TCP/IP。最多8个连接可以被操作。CP

243-1支持S

7-200与S

7-300/S

7-400/PC通讯。集成了S

7-OPC服务器的PC应用程序可以被执行CP

243-1允许Step

7

Micro/WIN通过以太网访问S

7-200的程序。·配置CP

243-1通过Step

7

Micro/WIN配置Hardware

OverviewSix

(6)

differential

input

channels+/-

(A1,

B1,

Z1,

A2,

B2,

Z2)LED

status

indication

for

each

ch.On-board

jumpers

to

select

5

Vdc

or

10-30

Vdc

operationFour

(4)

output

channels

with

single

com.LED

status

provides

logic

side

indicationOutputs

are

electronicallyprotected

with

LED

and

status

bit

indicationRUN

LED-

indicates

module

running,

communicating

with

BPFLT

LED-

indicates

hardware

problem,

flashes

if

outputs

experience

short

or

overcurrentconditionRemovable

Terminal

Block

(green)西门子

PLC教程S7-200/S7-300EM277模块在PROFIBUS-DP网络中的应用西门子

PLC教程S7-200/S7-300西门子

PLC教程S7-200/S7-300Single-Ended

Encoder

Wiring

SchematicPull-up

resistors

are

required

when

open

collector

type

input

devices

are

used

with

the

HSCE2.

Shields

should

be

wired

at

one

end

only.

Recommended

connection

is

at

SLC

chassis

mounting

screw.Encoder

shield

connection

should

be

connected

only

if

it

is

isolated

from

the

motor

and

ground

to

prohibit

noise

fromreaching

the

HSCE2.

An

on-board

jumper

is

provided

for

each

channel

for

choosing

between

two

voltage

ranges,

4.2-12

voltsor10-30

volts.

Pull-up

resistors

areonly

required

for

interfacing

to

open

collector

inputs.西门子

PLC教程S7-200/S7-300Example

of

differential

wiring

schematic.Differential

signals

provide

best

noiseimmunity.Shields

should

be

wired

at

one

end

only.

Recommended

connection

is

at

SLC

chassis

mounting

screw.Encoder

shield

connection

should

be

connected

only

if

it

is

isolated

from

the

motor

and

ground

to

prohibit

noise

fromreaching

the

HSCE2.

An

on-board

jumper

is

provided

for

each

channel

for

choosing

between

two

voltage

ranges,

4.2-12

voltsor10-30

volts.

Pull-up

resistors

areonly

required

for

interfacing

to

open

collector

inputs.西门子

PLC教程S7-200/S7-300Single-Ended

Discrete

Input

Wiring

SchematicPull-up

resistors

are

required

when

open

collector

type

input

devices

are

used

with

the

HSCE2.

Shields

should

be

wired

at

one

end

only.

Recommended

connection

is

at

SLC

chassis

mounting

screw.An

on-board

jumper

is

provided

for

each

channel

for

choosing

between

two

voltage

ranges,

4.2-12

voltsor10-30

volts.

Pull-up

resistors

areonly

required

for

interfacing

to

open

collector

inputs.西门子

PLC教程S7-200/S7-300网络连接例子西门子

PLC教程S7-200/S7-300组态西门子

PLC教程S7-200/S7-300西门子

PLC教程S7-200/S7-300西门子

PLC教程S7-200/S7-300西门子

PLC教程S7-200/S7-300西门子

PLC教程S7-200/S7-300西门子

PLC教程S7-200/S7-300S7-300系统硬件和网络介绍西门子

PLC教程S7-200/S7-300西门子

PLC教程S7-200/S7-300西门子

PLC教程S7-200/S7-300西门子

PLC教程S7-200/S7-300西门子

PLC教程S7-200/S7-300西门子

PLC教程S7-200/S7-300S7-300网络特点下一页西门子

PLC教程S7-200/S7-300网络详细信息西门子

PLC教程S7-200/S7-300S7-300硬件组态西门子

PLC教程S7-200/S7-300西门子

PLC教程S7-200/S7-300西门子

PLC教程S7-200/S7-300西门子

PLC教程S7-200/S7-3005、双击SIMATIC

300\RACK-300,然后将Rail拖入到左边空白处。生成空机架。西门子

PLC教程S7-200/S7-3006、双击PS-300，选中PS

307

2A，将其拖到机架RACK的第一个SLOT；西门子

PLC教程S7-200/S7-3007、双击CPU-300，双击CPU-315-2DP，双击6ES7

315-2AF03-0AB0，选中V1.2，将其拖到机架

RACK的第2个SLOT;一个组态PROFIBUS-DP的窗口将弹出，在Address中选择分配你的DP地址，默认为2；西门子

PLC教程S7-200/S7-3008、然后点击SUBNET的NEW按钮，生成一个PROFIBUS

NET的窗口将弹出。点中NETWORKSETTING页面，你可以在这里设置PROFIBUS-DP的参数，包括速率、协议类型。西门子

PLC教程S7-200/S7-3009、点击确定，即可生成一个PROFIBUS-DP网络西门子

PLC教程S7-200/S7-30010、组态ET200M，点开PROFIBUS

DP\点开ET200M\选中IM153-1(注意,是6ES7

153-1AA03-0XB0);将其拖到左面PROFIBUS(1):DP

master

system(1)上;西门子

PLC教程S7-200/S7-30011、立即，会弹出IM153-1通讯卡设置画面；DP地址可以改动，默认值为1；点击确定。西门子

PLC教程S7-200/S7-30012、点开IM153-1\再点开DI300\选中SM321

DI16*DC24V模块,并将其拖入左下面的第4槽中，一个

DI模块组态完毕，系统将自动为模块的通道分配I/O地址（该处为I0.0~I1.7）。西门子

PLC教程S7-200/S7-30013按照上面步骤组态DO模块（6ES7

322-1BH010AA0）。系统也将为其分配地址为（Q0.0~Q1.7）。西门子

PLC教程S7-200/S7-30014、按照上面的方法组态AI模拟量模块（6ES7

331

7KF01-0AB0）；然后双击该模块，弹出模块属性画面，点击Measuring栏，为每个通道定义信号类型，将0-1通道定义为两线制4~20mA信号，2-3通道为内部补偿K型热点偶信号（TI-C

K）。最后点击OK，完成AI模块组态。系统将为每个通道定义地址，该处第一通道是PIW256、PIW258。西门子

PLC教程S7-200/S7-30015、点击，Save

and

Complice,存盘并编译硬件组态，完成硬件组态工作。西门子

PLC教程S7-200/S7-30016、检查组态，点击STATION\Consistency

check,如果弹出NO

error窗口,则表示没有错误产生!以上是一个完整的硬件组态过程！西门子

PLC教程S7-200/S7-300S7-300网络组态目的：组态网络，完成各个设备通讯1、在硬件组态的基础上，切换到主画面，并点击按钮。西门子

PLC教程S7-200/S7-3002、系统将弹出网络组态画面，然后点击VIEW\Catalog将元件库打开。西门子

PLC教程S7-200/S7-3003、将STATION下面的PG/PC拖入组态画面中，然后双击PG/PC，弹出PG/PC组态画面，然后点开

INTERFACES页。点击NEW，选择MPI

interface,点OK键。西门子

PLC教程S7-200/S7-3004、然后弹出MPI组态窗口，将MPI地址设置为0，并将SUBNET中的MPI（1）选中，点击确定。西门子

PLC教程S7-200/S7-3005、点开Assignment页，选中MPI

INTERFACE（1）和PC

ADAPTER（MPI）；然后点击ASSIGN，再点击‘确定’按钮。PG/PC组态完成。西门子

PLC教程S7-200/S7-3006、组态PC

STATION，将PC–STATION拖入组态画面，将其双击，进入PC-STATION组态画面，7、点开PC-STATION下的CP

PROFIBUS\cp5611将其拖入PC的第一槽位。弹出CP5611组态画面，选中PROFIBUS（1），点击确定。然后点击SAVE

AND

COMPILE，将组态存盘和编译。西门子

PLC教程S7-200/S7-300西门子

PLC教程S7-200/S7-3008、点击STATION\Properties,打开

PC

STATION

属性画面，点开CONFIGURATION

页。在中间的框中是PC

STATION

的组态文件的文件夹地址和名称。我们可以用该文件配置PC机的CP5611网卡以上是一个完整的网络组态过程！MPI网络通讯：回顾PROFIBUS网络通讯：回顾》22页软件演示工业以太网网络通讯：回顾》22页软件演示西门子

PLC教程S7-200/S7-300S7-300

编程西门子

PLC教程S7-200/S7-300西门子

PLC教程S7-200/S7-300OB1FB1FC1OB100OB40DB1SFC1VAT1软件演示西门子

PLC教程S7-200/S7-300OPC

SERVER配置OPC配置基本包括四个部分硬件组态网络配置Configuration

Console配置Station

Configuration

Editor配置西门子

PLC教程S7-200/S7-300OPC

SERVER配置前提：安装Simatic

Net

6.0、STEP

7

5.1、IE6.01新建一个S7工程，并创建一个S7-300

station和一个PC

station(命名为SIAMTIC

PCStation(1)1.1配置S7

300

station并创建Ethernet(1).(如果指定一个IP

address

if

you

do

not

useISO

protocal)西门子

PLC教程S7-200/S7-300配置PC

station.打开PC

station硬件配置窗口,在第一个槽中插入一个应用.西门子

PLC教程S7-200/S7-3001.2.2在列表中选择CP

card,如果你用的是第三方产品,(例如象3COM网卡),你可以选择IEGeneral,记住它的位置在第三槽.西门子

PLC教程S7-200/S7-3001.2.3把PC

STATION连接到Ethernet(1).1.3.打开NetPro配置工具.西门子

PLC教程S7-200/S7-3001.3.1选择S7

connection插入一个新的连接。西门子

PLC教程S7-200/S7-300双击连接，可以得到更详细的信息！西门子

PLC教程S7-200/S7-3002、下载S7-300

station.3、配置网卡.3.1打开配置平台,选择你的IE

card,设置mode为Configuredmode,theindex应该和硬件配置中所设一样.Pls.see

1.2.2.西门子

PLC教程S7-200/S7-300))3.2设置access

points.CP_H1_1:

TCP/IP->(

Your

net

cardS7ONLINE:

PC

internal(local)3.3打开站配置编辑器.添加一个Application.Index

1.西门子

PLC教程S7-200/S7-300添加一个STATION名字，名字应该和你的PC

STATION一致。4、下载你的PC

STATION.更新站配置编辑器的诊断信息。西门子

PLC教程S7-200/S7-300使用S7通讯服务的过程变量格式一般有三种:S7:[<connectionname>]DB<no>,{<type>}<address>{,<quantity>}S7:[<connectionname>]DI<no>,{<type>}<address>{,<quantity>}S7:[<connectionname>]<object>{<type>}<address>{,<quantity>}解释如下：S7<connectionname>DBData

blockIdentifier

for

an

S7

variable

from

a

data

block（一个数据块的S7变量标示符）.DI<no><object><type>西门子

PLC教程S7-200/S7-300FormatIdentifierDescriptionOLE

Data

TypeVisual

Basic

TypeXBit

(bool).You

must

specify

the

bitnumber

(0

to

7).VT_BOOLBooleanBByte

(unsigned)VT_UI1ByteWWord

(unsigned)VT_UI2LongDDouble

word

(unsigned)VT_UI4DoubleCHARByte

(signed)VT_I1IntegerINTWord

(signed)VT_I2IntegerDINTDouble

word

(signed)VT_I4LongREALFloating

point

numberVT_R4SingleSTRINGString.You

must

specify

the

stringlength.VT_BSTRString[IOServer配置]名称=OPCSERVERS7最大变量=2000[OpcClient]服务器名称=OPC.SimaticNET功能个数=189//序号起始项名采集个数存放对象对象数目存放位置0

S7:[ZLJZ1]ib61DI82311

S7:[ZLJZ1]ib71DI82392

S7:[ZLJZ1]ib10

1

DI8

247S7:[ZLJZ1]IW%34

4

AIS7:[ZLJZ1]IW%14

8

AIS7:[ZLJZ1]MW32

1

AI1

451

491

5775

S7:[ZLJZ1]M,REAL381AI15876

S7:[ZLJZ1]MX101.01DI181577

S7:[ZLJZ1]MX100.21DI181678

S7:[ZLJZ2]IW%344

AI15979

S7:[ZLJZ2]IW%148

AI16399

S7:[ZLJZ5]M,REAL381AI1114100

S7:[ZLJZ5]MX101.01DI1823101

S7:[ZLJZ5]MX100.21DI1824105

S7:[ZLJZ6]M,REAL38102

S7:[ZLJZ6]IW%34

4

AI

1

115103

S7:[ZLJZ6]IW%14

8

AI

1

119104

S7:[ZLJZ6]MW32

1

AI

1

1271

AI

1128106

S7:[ZLJZ6]MX101.01DI1825107

S7:[ZLJZ6]MX100.21DI1826108

S7:[ZTS7318]Ib0

1

DI109

S7:[ZTS7318]IW%2

6

AI8

8071

129110

S7:[ZTS7318]db3,real128

1

AI111

S7:[ZTS7318]mb70

1

DI

2

8271

135遥控个数=185//序号输出地址遥控对象序号0

S7:[ZLJZ1]MX100.2

401

S7:[ZLJZ1]MX101.0412

S7:[ZLJZ1]MX100.142遥调个数=8//序号输出地址遥调对象序号0

S7:[ZTS7318]db3,real1280S7:[ZLJZ1]M,REAL38S7:[ZLJZ2]M,REAL38127

S7:[ZTS7318]db3,real1327铝厂PLC技术特点和实例一、闭环控制

闭环控制是以实现稳流控制为目的。稳流控制是通过调节整流机组的饱和电抗器和有载开关使得在电解槽负荷增加、网压波动和产生阳极效应时能使设定值电流与测量值电流一致。

闭环控制按照现在的说法，一般分为大闭环控制和小闭环控制。（或者叫N+1控制，N是整流机组的数量（每台机组配置一个小闭环控制），1是大闭环控制总调PLC）

大闭环控制由总调PLC完成，综合所有整流机组的工艺条件和阳极工况以实现稳流控制，一般分为总调控制和分调控制。

小闭环控制一般为就地控制，调节饱和电抗器，平衡A、B柜直流输出，采集整流柜本体信号，以及整流柜的本体保护。西门子

PLC教程S7-200/S7-300闭环控制从工业控制的角度可以理解为连续控制和逻辑控制。

连续控制是对饱和电抗器的控制（包括控制绕组和偏移绕组），为4-20mA电流信号或1-5V电压信号输出，由PID调节器实现（比例积分微分控制）。

逻辑控制是综合判断在连续控制调节饱和电抗器无法满足稳流控制要求时，如何升降有载开关。同时包括档位闭锁控制、最大需量控制、恒安时控制、切除机组控制、开启机组控制等。PID调节器—设定值反馈值输出1.

铝厂自动化控制流程铝厂自动化系统的控制难点在于稳流控制和有载开关自动控制。稳流控制流程如图：总调PID调节器系列电流测量值1#机组直流电(流整流柜交流侧电流)小闭环 设定值机组小闭环PID调节器稳流设定值串级控制示意图调节1副#机回组路控制绕组主回路大闭环手动自动单调联调二、升降有载开关

设置大闭环手/自动升降有载开关选择（由后台软压板实现），当选择自动升降有载开