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Generating the Connection Data for the open TCP/IP Communication using the OC Wizard

Open Communication Wizard

Application Dec 2011

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Industry Automation and Drives Technologies Service & Support Portal

This article is taken from the Service Portal of Siemens AG, Industry Automation and Drives Technologies. The following link takes you directly to the download page of this document.

http://support.automation.siemens.com/WW/view/en/25209116

Caution The functions and solutions described in this article confine themselves to the realization of the automation task predominantly. Please take into account furthermore that corresponding protective measures have to be taken up in the context of Industrial Security when connecting your equipment to other parts of the plant, the enterprise network or the Internet. Further information can be found under the Content-ID 50203404.


If you have any questions concerning this document please e-mail us to the following address:

mailto:[email protected]

You can also actively use our Technical Forum from the Service & Support Portal regarding this subject. Add your questions, suggestions and problems and discuss them together in our strong forum community:

http://www.siemens.com/forum-applications

http://support.automation.siemens.com/WW/view/en/25209116�


mailto:[email protected]�

http://www.automation.siemens.com/WW/forum/guests/Conference.aspx?ForumID=230&Language=en�

OC Wizard V2.3.3, Entry-ID: 25209116 3

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SIMATIC OC Wizard

Open Communication

Automation Task

1

Automation Solution

2 Function Mechanisms of this Application

3

Design

4

Installation

5 Operation of the Application

6

Related Literature

7

History

8

Warranty and Liability

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Warranty and Liability Note The Application Examples are not binding and do not claim to be complete

regarding the circuits shown, equipping and any eventuality. The Application Examples do not represent customer-specific solutions. They are only intended to provide support for typical applications. You are responsible for ensuring that the described products are used correctly. These application examples do not relieve you of the responsibility to use safe practices in application, installation, operation and maintenance. When using these Application Examples, you recognize that we cannot be made liable for any damage/claims beyond the liability clause described. We reserve the right to make changes to these Application Examples at any time without prior notice. If there are any deviations between the recommendations provided in these application examples and other Siemens publications – e.g. Catalogs – the contents of the other documents have priority.

We do not accept any liability for the information contained in this document.

Any claims against us – based on whatever legal reason – resulting from the use of the examples, information, programs, engineering and performance data etc., described in this Application Example shall be excluded. Such an exclusion shall not apply in the case of mandatory liability, e.g. under the German Product Liability Act (“Produkthaftungsgesetz”), in case of intent, gross negligence, or injury of life, body or health, guarantee for the quality of a product, fraudulent concealment of a deficiency or breach of a condition which goes to the root of the contract (“wesentliche Vertragspflichten”). The damages for a breach of a substantial contractual obligation are, however, limited to the foreseeable damage, typical for the type of contract, except in the event of intent or gross negligence or injury to life, body or health. The above provisions do not imply a change of the burden of proof to your detriment.

Any form of duplication or distribution of these Application Examples or excerpts hereof is prohibited without the expressed consent of Siemens Industry Sector.

Table of Contents


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Table of Contents Warranty and Liability ................................................................................................. 4

1 Automation Task .................................................................................. 6 1.1 Overview .............................................................................................. 6 2 Automation Solution ............................................................................. 7 2.1 Overview .............................................................................................. 7 2.2 Required Hardware and Software Components .................................. 7 3 Function Mechanisms of this Application............................................. 9 3.1 Overview .............................................................................................. 9 3.2 Operation principle of the example program...................................... 10 4 Design ................................................................................................ 11 4.1 Hardware setup .................................................................................. 11 5 Installation .......................................................................................... 12 5.1 Installation of the Tool ........................................................................ 12 5.2 Installing the example......................................................................... 13 6 Operation of the Application............................................................... 14 6.1 Functions of the OC Wizard as an overview...................................... 14 6.2 General information on the dialog masks........................................... 16 6.3 Step by step instruction: Call OC Wizard from SIMATIC

Manager ............................................................................................. 23 6.4 Step by step instruction: Create new connection............................... 24 6.5 Step by step instruction: Change connection..................................... 27 6.6 Step by step instruction: Copy connection / use as template ............ 30 6.7 Required steps for connection configuration in UDT ......................... 33 6.8 Operating the example....................................................................... 34 7 Related Literature............................................................................... 35 8 History ................................................................................................ 36

1 Automation Task

1.1 Overview

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1 Automation Task

1.1 Overview

All new SIMATIC S7-CPUs contain an integrated PROFINET interface which enables the TCP/IP communication.

The configuration of the TCP/IP communication via this integrated interface is only possible using the open communication and its function blocks.

The communication blocks FB65 "TCON", FB66 "TDISCON", FB63 "TSEND" and FB64 "TRCV" are used. The connection description does not occur via a configuration (in NetPro), therefore the parameters for each connection must be specified in a data block.

2 Automation Solution

2.1 Overview


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2.1 Overview

The Automation solution

Using the “Open Communication Wizard” tool enables simple and clear specification of the connection parameters. The tool then exports a UDT or a DB with all parameters of the connection description into your STEP 7 project.

Using the finished data block we then give a simple example project of how the communication is realized in the S7-300 and S7-400 CPU from a program technology point of view using the above blocks.

This example project shows the configuration and programming of a communication relationship between a CPU319 and a CPU419 via the integrated Ethernet interface and the ISO-on-TCP protocol.

Application areas / customer benefits

The Open Communication Wizard provides the following advantages:

• simplified generation of connection descriptions

• reduced susceptibility to errors

• only offers the required parameters

• existing connections will be uploaded and presented

• overview of the connections can be exported

• an existing connection can be used as template for a new connection (copy)

• an existing connection can be changed (change)

• the OC Wizard is integrated in the SIMATIC Manager and can be called from a STEP 7 project

2.2 Required Hardware and Software Components

The application was generated with the following components:

Hardware components

Table 2-1

Component No. MLFB / order number Note

PS307 5A 1 6ES7307-1EA00-0AA0

CPU319-3 PN/DP 1 6ES7318-3EL00-0AB0 from V2.5

PS407 10A 1 6ES7407-0KA01-0AA0

CPU416-3 PN/DP 1 6ES7416-3ER05-0AB0 from V5.0


2.2 Required Hardware and Software Components

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Standard software components

Table 2-2

Component No. MLFB / order number Note

SIMATIC STEP 7 Version 5.4 + SP1

1 6ES7810-4CC08-0YA5 Or higher

Microsoft Visual Studio .NET

1

Additional software components

Operating the OC Wizard requires the installation of .NET Framework on your PG/PC. After Installation of STEP 7 at your PC this .NET Framework is already installed. Therefore it is not necessary to install .Net Framework manually.

OC Wizard and example project

The STEP 7 example project and the OC Wizard are available on the HTML page from which you downloaded this document. The OC Wizard is also included in the STEP 7 (DVD).

The following list includes all files and projects that are used in this example.

Table 2-3

Component Note

25209116_OC_Wizard_CODE_V233.zip Tool - Open Communication Wizard

25209116_STEP7Example.zip STEP 7 example project with the connection data


3.1 Overview


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3.1 Overview

General overview

The following schematic overview is the procedure for using the Open Communication Wizard.

Figure 3-1

Download connectionsfrom STEP 7 project

Insert or change parameter

Create STL source

Import and compile STL source in STEP 7 project

Create newconnection

Change connection

Use connectionas template


3.2 Operation principle of the example program

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3.2 Operation principle of the example program

The following overview displays operation principle and sequence of the example program.

Figure 3-2

FB65_REQ = 1

FB65 “TCON” DB10 “TCON_PAR”

FB63 „TSEND“ FB64 “TRCV”

FB66 “TDISCON”

FB66_REQ = 1

FB63_REQ = 1

MB20

SENDDATA

MB20

RECVDATA

Table 3-1

No. Instruction

1. With a positive edge at FB65_REQ, the FB65 “TCON” tries to establish a connection using the connection data from the DB10 “TCON_PAR“.

2. After the connection has been established, memory byte 20 is sent to the partner station with each positive edge at FB63_REQ.

3. The partner receives the data and saves it in memory byte 20.

4. A rising edge at FB66_REQ reactivates the connection.

4 Design

4.1 Hardware setup


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4 Design

4.1 Hardware setup

The figure below shows the hardware setup of the example. S7-300, S7-400 and the PG/PC are connected via Industrial Ethernet.

Figure 4-1

Industrial Ethernet

S7-300 with CPU319

S7-400 with CPU416-3

PG/PC withSTEP 7 and

Open Communication Wizard

Communication partnerA

Communication partnerB

192.168.1.30192.168.1.31

5 Installation

5.1 Installation of the Tool

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5 Installation

5.1 Installation of the Tool

Software Preconditions

The Open Communication Wizard is running under:

• MS Windows XP Professional with SP2 or SP3

• MS Windows 7 ultimate / professional / enterprise with or without SP1. The Windows XP mode under Windows 7 has not been approved yet.

• MS Windows Server 2003 R2 SP2 standard edition as working station

• MS Windows Server 2008 R2 (64Bit) with or without SP1

Installing the OC Wizard

Retrieve the zip-file (25209116_OC_Wizard_CODE_V233.zip) and go through the setup process. The tool is available after installation at Start->SIMATIC. Before installation of the new version the old version of the OC-Wizard must be removed via the control panel of your PC

Installation of OC Wizards from STEP 7 DVD

The Open Communication Wizard on the STEP 7 DVD can be found under “CD_2\Optional Components\OC Wizard“. Execute Setup.exe.

Note The Open Communication Wizard works with STEP 7 projects. This requires STEP 7 being installed on this computer. If STEP 7 is not installed the installation of the Open Communication Wizard will be aborted.

5 Installation

5.2 Installing the example


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5.2 Installing the example

Installation of the hardware

Install the hardware on the appropriate rack/ rail according to the installation guidelines. Then network all components via Industrial Ethernet.

Installing the example project

Table 5-1

No Instruction Note / Explanation

5. Start the SIMATIC Manager.

6. Retrieve the zipped project (Example_STEP7.zip) via the menu File -> Retrieve).

Use the browser to search the relevant project and click OK to confirm.

7. Assign the IP addresses via “PLC -> Edit Ethernet node“ to the individual stations.

Click Search and select the appropriate station.

8. Adjust the IP address and the subnet mask. Then assign the IP configuration.

In this example, CPU319 has the address 192.168.1.30 and CPU416 has 192.168.1.31.

Note The example is runnable immediately. Chapter Operating the example describes how to control the data transfer


6.1 Functions of the OC Wizard as an overview

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All functions of the Open Communication Wizard are described here. The “step by step” instructions are given in the course of this document.

Generating a new open connection

The Open Communication Wizard enables you to configure new connections. The connection data is stored directly in your project in a UDT or DB.

Uploading the connections from a STEP 7 project

The Open Communication Wizard can read out the existing open connections from the STEP 7 project. In STEP 7 the Open Communication Wizard searches the blocks (UDT, DB) of a station for structures which contain the connection data. The loaded data can be used for further processing.

Exporting the overview of the uploaded connection

An overview of the uploaded open connection of a station can be saved as *.csv file. This data can be used for example for your documentation.

Creating data block with connection data

The tool can save the connection data in a global data block. A new block can be created as well as connection data be attached to an existing block.

Change an existing connection

Uploaded open connections can be changed with the tool. Subsequently, the data are filed at the same location in the STEP 7 project.

NOTICE NOTICE The OC Wizard enables you to identify your connections by assigning a connection name in plain text.

This connection name is saved in some comment lines of the connection data. These comment lines are not available for other usage!

Note In the overview the connection data are shaded in gray, if these data cannot be changed. This includes the following:

• Connection data in a UDT. All data blocks in the S7 program which use these UDT are affected by the changes.

• The connection data in an instance data block. Changing these data may cause time stamp conflicts.

• Connection data in structures with nesting depth > 1 (e.g. DB1.TCON.CPU319.TCP.Verb1.block_length…..).

• UDP Connection: Address data is not available, because e.g. in the editor of STEP 7 the block was deleted, copied, modified, ….




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Generate new connection by means of the copying function

New connections can be generated by copying and changing an uploaded connection. This facilitates the data input in case of many identical parameters.

Open connection data shaded in gray can be used during copying.

Specifying the connection name

A name can be specified for a connection. This facilitates the clarity in case of several connections. This connection name is stored in the comment of the data block.

NOTE This connection name must be unique.


6.2 General information on the dialog masks

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Subsequently dialogs of the Open Communication Wizard are described from a general point of view. This description serves as a supplementation of the step by step instruction which you find in the further course of the document.

Dialog mask: Welcome

Figure 6-1

The Open Communication Wizard starts with this dialog. Here you find information on the Open Communication Wizard. Further information on the open communication is available on the internet.

Dialog mask: STEP 7 project

Figure 6-2




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The STEP 7 project selected in this dialog as well as the block folder can be considered as a source station. From this station connection data are uploaded. After using the “Next” Button the upload of the specified project starts automatically.

This station is at the same time used as target station, if the details on the STEP 7 project and/or the block folder are not changed in the dialog mask “Select Step 7 project and block folder” in the further course of the configuration.

The tool determines IP addresses of the selected station. These IP addresses can be considered as local IP addresses.

Note The “STEP 7 project” dialog mask is only provided when directly calling the OC Wizard from Windows.

When calling the OC Wizard from the SIMATIC Manager the STEP 7 project and the block folder is automatically transferred from the SIMATIC Manager. The project and the block folder from which the OC Wizard was called is valid during the entire processing time and is only transferred new after exiting the OC Wizard and calling it again. This is the case for the source station as well as for the target station.

Therefore this mask is not offered when calling from the SIMATIC Manager.

Dialog mask: Upload connections

Figure 6-3

In this dialog the uploaded connections in the overview are represented. Here you can switch between functions of the Open Communication Wizard.

The upload starts automatically. This gives you an overview of the connections of the selected station. Furthermore the ID is preassigned with the next free value for a new connection

The overview can be exported as *.csv file. To do this click “export”.



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The functions “Change” and “Copy” assume the selection of an uploaded connection in the overview.

When calling the OC Wizard from the SIMATIC Manager the OC Wizard starts with this dialog. Read back is performed automatically.

Dialog mask: Choose the type of your connection

Figure 6-4

Here you can choose which connection you wish to configure.

This mask is only displayed for the “New” function.

Changing the connection types causes the values to be reset and the dialog masks to be represented differently.

Open communication via “ISO-on-TCP” and “UDP” is for the S7-300 CPUs only supported from firmware version V2.4 on.




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Dialog mask: Communication partner I

Figure 6-5

In this dialog the option “Only communication …” enables you to choose whether you wish to configure both partners at the same time. This option can be changed when creating a new “TCP native” or “ISO on TCP” connection. In other cases this option is defined by the OC Wizard and cannot be changed.

You can also configure these connections individually.

Changing the options causes the values to be reset and the dialog masks to be represented differently.

Dialog mask: Communication partner II

Figure 6-6

Here you enter connection parameters. Please ensure, that the correct interface has been selected. Please also note, that rack and slot must be adjusted for S7-400.



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If you do not enter a connection name, a name which is automatically generated by the tool is used (in the format “auto_name_x”). The connection name is filed in the comment.

Changing the options causes the values to be reset and the dialog masks to be represented differently.

Dialog mask: Connection parameters

Figure 6-7

In this dialog you enter the port number for the connection.

We recommend using a port number from the range 2000 to 5000.

Dialog mask: Chose destination project

Figure 6-8

In the dialog please specify to which project and to which block folder the generated UDT or DB should be imported. The selected STEP 7 project and the block folder can in this dialog be considered as target station. These details are preassigned here.




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You can accept this preassignment or also specify a different target project or target folder to which the completed block is compiled and inserted. If you specified a different target project and after using the “Next” Button a new upload of the specified project starts automatically.

If a connection is changed (function “Change”), details in this dialog cannot be changed. The connection data are filed in the same data block and at the same location.

Assign any block name. When using a symbolic name ensure that the symbolic name is defined in your S7 program.

The OC Wizard checks whether the specified block already exists in your S7 program. If the block does not yet exist in your S7 program, it will be generated. An existing data block is analyzed by the OC Wizard and, after a successful analysis, connection data can be assigned to the data block.

CAUTION The OC Wizard ignores read protection of data blocks. I.e. data blocks will be overwritten from the OC Wizard. Choose only data blocks without read protection in OC Wizard.

Note When calling the OC Wizard from the SIMATIC Manager the STEP 7 project and the block folder is automatically transferred from the SIMATIC Manager. The project and the block folder from which the OC Wizard was called are shaded in gray in this mask. The connection configuration created with the OC Wizard is saved in this block folder.

Dialog mask: Overview

Figure 6-9



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To check the performed changes the connections are again represented as an overview in this dialog. The changes are shaded in gray.

Note Up to this dialog mask no changes have yet been made in the STEP 7 project. Continuing the OC Wizard by pressing the “Next” button causes the compilation and insertion of the bock into your selected target project.

Dialog mask: Compilation report

Figure 6-10

In this dialog the results of the compilation are displayed. If no errors are displayed in the report, the changes in the STEP 7 project are made successfully. Otherwise no changes are made.

If an error message is displayed in the report, you check whether the used block is not opened otherwise.


6.3 Step by step instruction: Call OC Wizard from SIMATIC Manager


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6.3 Step by step instruction: Call OC Wizard from SIMATIC Manager

Description OC Wizard

1. 1) Start the SIMATIC Manager. 2) Open your project. 3) Go to the desired block folder. 4) Click the OC Wizard in the context menu

of the block folder. The OC Wizard is started now and transfers the STEP 7 project and this block folder as source and target folder for further processing. You can also start the OC Wizard via the Options (tools) menu. The “OC Wizard” menu item is only active if a block folder has been selected.

2. The OC Wizard starts with this dialog. The connection data from your block folder is now read back automatically. Note: For larger projects, the read-back process can slow down the display of this dialog a little. The further process and operation of the OC Wizard is identical with calling the OC Wizard from Windows. Further information on this dialog is available in chapter “Dialog mask: List of connections”.

Note When calling the OC Wizard from the SIMATIC Manager, the data from the called block folder is read and transferred in this block folder.


6.4 Step by step instruction: Create new connection

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In this chapter we show you step by step the procedure for generating a new open connection.

Note If already configured open connections exist in your project, you can also create new connections via the “Copy” option. See: (Step-by-step instruction: Copy connection / Use as template).


3. Click “Next” in this dialog. Further information on this dialog is available in chapter “Dialog mask: Welcome”.

4. In this dialog you select a STEP 7 project and a block folder. Further information on this dialog is available in chapter “Dialog mask: STEP 7 project”.

5. In this dialog the option “New” has been selected as a standard. Click “Next” in to get to the next dialog. Further information on this dialog is available in chapter “Dialog mask: Upload connections”




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6. Here you select the types of the new connection. Further information on this dialog is available inchapter “Dialog mask: Choose the type of your connection”.

7. Click “Next” in this dialog. Further information on this dialog is available in chapter “Dialog mask: Communication partner I”.

8. In these dialogs you enter the parameters for open communication. Further information on these dialogs are available in chapter

“Dialog mask: Communication partner II”, “Dialog mask: Connection parameters”.



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9. In this dialog you enter any UDT or DB name. Further information on this dialog is available in chapter “Dialog mask: Chose destination project”.

10. In this dialog you check your details and click “Next”. Further information on this dialog is available in chapter “Dialog mask: Overview”.

11. A new connection was configured. Click “Finish“. Further information on this dialog is available in chapter “Dialog mask: Compilation report”.


6.5 Step by step instruction: Change connection


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In this chapter we show you step by step the procedure for changing an existing connection.




14. In this dialog you select an uploaded connection in the overview. Activate the “Change” option and click “Next”. Further information on this dialog is available in chapter “Dialog mask: Upload connections”.



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16. In these dialogs you can change the parameters for open communication. Further information on this dialog is available in chapter “Dialog mask: Communication partner II”. “Dialog mask: Connection parameters”.

17. Click “Next” in this dialog. Further information on this dialog is available in chapter “Dialog mask: Chose destination project”.




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19. The selected connection was changed. Click “Finish“. Further information on this dialog is available in chapter “Dialog mask: Compilation report”.


6.6 Step by step instruction: Copy connection / use as template

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In this chapter we show you step by step the procedure for copying or using an existing connection as template for creating a new connection.




22. In this dialog you select an uploaded connection in the overview. Activate the “Copy” option and click “Next”. Further information on this dialog is available in chapter “Dialog mask: Upload connections”.




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24. In these dialogs you can change the parameters for open communication. Further information on this dialog is available in chapter “Dialog mask: Communication partner II”. “Dialog mask: Connection parameters”.

25. In this dialog you enter any UDT or DB name. Further information on this dialog is available in chapter “Dialog mask: Chose destination project”.



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27. A new connection was configured from the template. Click “Finish“. Further information on this dialog is available in chapter “Dialog mask: Compilation report”.


6.7 Required steps for connection configuration in UDT


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6.7 Required steps for connection configuration in UDT

After the UDT was entered into your STEP 7 project, the UDT must be integrated into a data block. Generate a new data block for this.

In the data block you generate a new variable of the UDT type (here: UDT120). The parameters are now default according to your settings and can be used by the FB65 “TCON“.

Figure 6-11

Note This step is only necessary if connection data are filed in a UDT. Connection data filed in a data block can be used directly.


6.8 Operating the example

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6.8 Operating the example

The example is controlled via the attached variable tables. For each communication partner a separate variable table exists (CONTROL).

Figure 6-12

Table 6-1

No. Instruction

28. Triggering the connection setup with rising edge at FB65_REQ in both communication partners.

29. As soon as the connection has been established (FB65_connected) you trigger the data transfer in the CPU319 with a rising edge at FB63_REQ.

30. Data is continuously received in the S7-400. Evaluate the rising edge of FB64_NDR to process the received data.

31. After sending was completed, the connection can be cancelled with a rising edge at FB66_REQ. This step must be performed in both communication partners.

7 Related Literature


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7 Related Literature This list is not complete and only represents a selection of relevant information.

Table 7-1

Subject Title

\1\ “System software for S7-300/400 system- and standard functions” manual


\2\ Examples and FAQs for open communication via Industrial Ethernet


\3\ Automation system S7-400 CPU data








8 History

36 OC Wizard

V2.3.3, Entrys-ID: 25209116

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8 History

Table 8-1

Version Date Modifications

V1.0 04.05.2007 First issue

V2.0 15.09.2008 Updating for Open Communication Wizard V2.0

V2.1 04.12.2008 Updating for Open Communication Wizard V2.1

V2.1.1 19.02.2009 Modification of header and footer

V2.1.1.4 25.06.2009 Add-on with integration of OC Wizard in STEP 7

V2.2 02.02.2010 Add-on with WinAC

V2.3 03.03.2010 Modification of GUI

V2.3.2 05/2011 Updating for STEP 7 V5.5 SP1

V2.3.3 12/2011 Add-on with CPU314, CPU 412

Documents

25209116_OC_Wizard_DOKU_V233_en_2