S7-1200 and Step7 Basic v10.5 communication

S7-1200 and Step7 Basic v10.5 communication

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S7-1200 and STEP7 Basic V10.5

CommunicationPage 1

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S7-1200 and

STEP7 Basic V10.5

Chapter 7:

Communication

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S7-1200 and STEP7 Basic V10.5

CommunicationPage 2

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Industry Sector Communication

Overview: Communication interfaces

CPU onboard: Ethernet (PROFINET)

ƒ Client: PUT/GET (in preparation)

ƒ PROFINET I/O (in preparation)

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Industry Sector Communication

ƒ RTU Master-Protocol

ƒ RTU Slave-Protocol

3rd Party

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Industry Sector Communication

Open user communication – Overview

Blocks without connection management

Blocks with connection management

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Industry Sector Communication

IP Address ConnectionID TSAP/PORT

TSEND SFB

TCON SFB

TDISCON SFB

TRCV SFB

CPU 2 (passive)

Connection data

IP Address ConnectionID TSAP/PORT

TRCV SFB

TCON SFB

TDISCON SFB

TSEND SFB

Disconnect Data

Data

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Industry Sector Communication

IP Address ConnectionID TSAP/PORT

TSEND_C SFB

TRCV_C SFB

CPU 2 (passive)

Connection data

IP Address ConnectionID TSAP/PORT

TRCV_C SFB

TSEND_C SFB

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Industry Sector Communication

er P rotocol

http

Hyper T

ext Transf

er Pro tocol

ple N

etwork

Mana

g. Protocol

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CommunicationPage 8

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Industry Sector Communication

er P rotocol

http

Hyper T

ext Transf

er Pro tocol

ple N

etwork

Mana

g. Protocol

Port

102

TCP

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Industry Sector Communication

TSAP (Transport Service Access Point)

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Industry Sector Communication

connect PLCs with subnet via Drag&Drop

Properties of the Ethernet interface

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Industry Sector Communication

Below „Other“ are the blocks without connection management

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Industry Sector Communication

Send data with „TSEND_C“

Connecting, send data and disconnecting in one block

Hold connection or disconnecting

Connection data

IP Address ConnectionID TSAP/PORT

Connecting and send data with rising edge

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Industry Sector Communication

IP Address ConnectionID TSAP/PORT

Choice connection type

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Industry Sector Communication

Exercise for Communication

Let’s just do it the lab for you

Hands-on

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CommunicationPage 15

Process 1 connect two S7-1200 Demo Boxes

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Industry Sector Communication

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CommunicationPage 16

Process 2 activate „Create new project“

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Industry Sector Communication

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Process 5 start editor for „Devices & Networks“

SIMATIC S7-1200 > CPU > Unspecified CPU 1200

7 insert PLC via Drag&Drop in „Network view“

10 switch to the device view of PLC_1

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Industry Sector Communication

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Industry Sector Communication

1 5

1 6

1 7

Hands-on

Process 11 detect the configuration of the connected device

12 select accessible device (check MAC-address)

13 load configuration

14 uploaded configuration of S7-1200 Demo rack

15 select PLC_2 in the DropDown list

16 repeat Step 11 up to 14 also for the second PLC

17 switch to the Network view

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Process 18 activate „Networks“ in the taskbar

19 connect both PLC with a subnet via Drag&Drop

20 select PLC_1

21 activate clock memory bits for PLC_1

Hint: You need following memory bit for your user program:

- „1Hz clock“ (M0.5)

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Industry Sector Communication

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23 In Extended instructions select „TSEND_C“ at Communication >

Open user communication and insert in OB1 via Drag&Drop

24 add Instance-DB for „TSEND_C“

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Industry Sector Communication

23

24

Hands-on

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Process 25 set PLC_2 as Partner PLC

26 assign „PLC1“ to Local TSAP and „PLC2“ to Partner TSAP

27 assign M0.5 (1Hz Clock) to In-Parameter „REQ“

28 assign TRUE to In-Parameter „CONT“

29 assign ‘1’ to In-Parameter „LEN“

30 assign IB0 to In-Parameter „DATA“

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Industry Sector Communication

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32 In Extended instructions select „TRCV_C“ at Communication >

Open user communication and insert in OB1 via Drag&Drop

33 add Instance-DB for „TRCV_C“

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Process 34 set PLC_1 as Partner PLC

35 choose „PLC_2_Connection_DB“ as connection data for Local PLC and „PLC_1_Connection_DB“ for Partner PLC

36 assign TRUE to In-Parameter „EN_R“

37 assign TRUE to In-Parameter „CONT“

38 assign ‘1’ to In-Parameter „LEN“

39 assign QB0 to In-Parameter „DATA“

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Industry Sector Communication

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Process 40 select both PLCs (CTRL + mouse click)

41 load projects

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Industry Sector Communication

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CommunicationPage 25

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I IA AS CS 2 FA

Phone: +49 (911) 895-4646E-Mail: sss.simatic@siemens.com

Thank you for your attention!