Description:
The SIMATIC NET Quick Start Collection provides simple sample programs designed to help when starting to configure plants with SIMATIC NET products.

The following links take you to the SIMATIC NET Quick Start Collection. There you will find sample programs and documentation for communication via PROFIBUS using the following protocols:

• DP:
  Communication to remote modules
  http://www.automation.siemens.com/net-static/Quickstart2009/quickstart012003/html_76/profibus/pb_dp.htm
  FDL:
  Communication via the free Layer 2 access
  http://www.automation.siemens.com/net-static/Quickstart2009/quickstart012003/html_76/profibus/pb_fdl.htm
• S7 communication:
  Communication in the SIMATIC S7 system family
  http://www.automation.siemens.com/net-static/Quickstart2009/quickstart012003/html_76/profibus/pb_s7.htm

Here you will find sample S7 programs and documentation for the following SIMATIC NET products:

• PROFIBUS CPs for S7-300, S7-400 and S7-200
• PROFIBUS PC CPs, e.g. CP5611, CP5613
• Gateway, e.g. DP/AS Interface Link

Keywords:
S7 communication, Send/Receive, DP Master, DP Slave, Connection configuration, FDL

Description:
In this description of how to configure S7 connections it is assumed that all the stations are in one S7 project.

Types of S7 connections:
With S7 connections you differentiate between bilaterally configured and unilaterally configured S7 connections.

Bilaterally configured S7 connections
You recognize bilaterally configured connections by the fact that they receive a connection ID at both endpoints. The partner ID can be identical for both connection partners, but doesn't have to be. The remote endpoint of the S7 connection created is entered automatically in the connection table on the partner side.
You can use the following communication blocks in the S7-300 or S7-400 station for data communication via bilaterally configured S7 connections:

• FB/SFB14 "GET" and FB/SFB15 "PUT"
• FB/SFB12 "BSEND" and FB/SFB13 "BRCV" or
• FB/SFB8 "USEND" and FB/SFB9 "URCV"

Unilaterally configured S7 connections
Unilaterally configured S7 connections are configured on the module that actively sets up the S7 connection.
You can use the communication blocks FB/SFB14 "GET" and FB/SFB15 "PUT" in the S7-300 or S7-400 station for data communication via unilaterally configured S7 connections. You can use these for data communication via unilaterally and bilaterally configured S7 connections. You can only use the communication blocks FB/SFB12 "BSEND" and FB/SFB13 "BRCV" and FB/SFB8 "USEND" and FB/SFB9 "URCV" for data communication via bilaterally configured S7 connections.

More information on the properties and special features of the S7 protocol and on the properties of the different S7 protocol services is available in Entry ID: 26483647.

In NetPro there is a connection table with all the configured communication connections. Unilaterally configured S7 connections have no entry in the "Partner ID" column of the connection table. This field remains empty in the connection table. No S7 connection is configured on the server and no communication blocks are called. The server is managed independently by the CPU's operating system and has resource 0x03. No system data is created for this in the connection partner.

Fig. 1: Bilaterally and unilaterally configured S7 connection

Summary:

• All S7 connections that have a connection ID at both connection endpoints are bilaterally configured S7 connections.

• S7 connections that have no partner ID are unilaterally configured S7 connections or have been created via "unspecified" S7 connections with resource 0x03.

Important:

• With bilaterally configured S7 connections you must load the configuration in both connection partners after creating the S7 connection.
• With unilaterally configured S7 connections you must load only the one station in whose connection table the S7 connection is shown.

Note:
In the sample S7 connection configuration given above all the stations are in one S7 project. You can also set up an S7 connection to an unspecified partner and the endpoints of these connections can be in different projects. More information on this is available in the Online Help of STEP 7:

• Configuring cross-project connections.
• Connection types for partners in other projects.
• Creating cross-project subnetworks.

Keywords:
Connection configuration, S7-300, S7-400, SIMATIC, Connections, Creating a connection, Client, Server, Connection setup, NetPro

Configuration notes:
In version V6.1 of SIMATIC NET (CD 11/2002) and higher you can use the symbol table and the data block symbols of your STEP 7 project as a basis for generating the symbols of the SIMATIC NET OPC server.

This entry describes how to generate symbols for the SIMATIC NET OPC server from the STEP 7 symbol table.

A PC station with a standard Ethernet network card is used. Data exchange between PC station and S7 station is implemented via Industrial Ethernet using S7 Communication.

Requirements:
Both PC station and S7 station must be configured in the same STEP 7 project.

Configuration of the S7 station:
Use the SIMATIC Manager to open your STEP 7 project that contains the SIMATIC S7 station.

Fig. 01: STEP 7 project

Switch to the S7 program folder and double-click on "Symbols". The symbol table opens.

In the symbol table you define the symbol names you want.

Fig. 02: Symbols in the symbol table

Other variables with symbol names of the STEP 7 project are in the existing data blocks - DB1 in this example.

Fig. 03: Variables in DB1

Download the hardware configuration and the user program to the CPU of your S7 station.

Configuring the PC station:
You insert a new PC station via the menu Insert -> Station -> SIMATIC PC Station.

Fig. 04: Inserting a PC Station

Please follow the instructions given in Entry ID 15355168 for configuring the PC station.

Incorporating STEP 7 symbols in the OPC server:
Then right-click the OPC server and open the Object Properties of the OPC server.

Fig. 05: Opening the Object Properties of the OPC server

In the Properties dialog of the OPC server you switch to the "S7" tab. In this dialog you define which STEP 7 symbols are used in the OPC server. Enable either the "All" or the "Configured" option.

Fig. 06: Properties dialog of the OPC server - "S7" tab

If you enable the "Configured" option, then you right-click the "Configure..." button. The following dialog opens.

Fig. 07: Configure Symbols dialog - variable symbols in the symbol table

Fig. 08: Configure Symbols dialog - variable symbols in the data block

In the "Configure Symbol" dialog you can make the variable symbols defined in the symbol table and data block visible for the OPC server and define their authorization (Read/Write, Read, Write or none).

Click the "OK" button to close the "Configure Symbols" dialog.

Then, in NetPro, you mark the PC station and save and compile the complete configuration.

Fig. 09: Saving and compiling the configuration

Mark your PC station.

Fig. 10: Save and Compile

If warnings are displayed when saving and compiling the configuration, then they should be treated as purely information. It is possible to download the configuration into the PC station. If errors occur when saving and compiling, it is not possible to download the configuration into the PC station.

In NetPro, you mark the PC station and click on the "Download" button to download the configuration into the PC station.

The following message reminds you that the downloading procedure will delete the data already on the components concerned and the new data will be downloaded to them.

Fig. 11: PLC download

Acknowledge the message with "OK". Now the download starts.
First the target modules are stopped. Acknowledge the subsequent message with "OK" to continue the download procedure.

Fig. 12: Stopping the target modules

Note:
The following entry provides information on possible causes of error messages during the downloading procedure 12033912.

Successful downloading completes configuration of the PC station.

Use the OPC Scout to check whether the STEP 7 symbols are available in the OPC server. This OPC client is included in the SIMATIC NET PC software.

Start the OPC Scout in the Windows START menu via SIMATIC -> SIMATIC NET -> OPC Scout.

Double-click on "OPC.SimaticNET" to connect to the SIMATIC NET OPC server.

Fig. 13: Connecting to the SIMATIC NET OPC server

In the dialog box that opens you enter a group name of your choice.

Fig. 14: Entering a group name

Double-click on the group name created, "S7" in this example, to open the OPC Navigator. In the OPC Navigator you can define the OPC items.

Fig. 15: Opening the OPC Navigator

The incorporated STEP 7 symbols are to be found in the OPC Navigator in the "...\SYM" folder.
Double-click on "\SYM". The S7 station from the STEP 7 project is displayed. This contains more subfolders (CPU and data blocks).
The variable symbols that you defined in the STEP 7 symbol table are contained in the CPU folder. Mark the CPU folder. The defined variable symbols are displayed in the middle window pane. Mark the variable names and click on the "->" button to add them to the OPC item list. Click "OK" to close the dialog. 

The variable symbols defined in the data block are in the data block folder.

Fig. 16: OPC Navigator

The OPC Scout has added the selected variables with symbolic names to the list of OPC items.
If the quality of the OPC items is good, then the communication connection can be set up and you can read/write the values of the OPC items.

Fig. 17: List of OPC items

Instructions:
In this example, a CP5611 is used for the communication via the OPC server as DP master with a DP slave on the PROFIBUS.

Note:
The procedure described here also applies for communication processors CP5511, CP5512 and CP5621.

General information:
You can choose between two different configuration tools:

• NCM PC:
  NCM PC is supplied with the SIMATIC NET CD and permits you to create PC projects and open STEP 7 projects. However, it is not possible to use this software to edit the S7 blocks in the STEP 7 project. 
• STEP 7:
  STEP 7 is a separate software package and permits you to create S7-400, S7-300 and PC projects. It is possible to use this software to edit the S7 blocks.

Only one of these tools can be installed.

Please follow the instructions below for configuring the PC station.

Guide_DPMaster_e.pdf ( 1962 KB )

Keywords:
SIMATIC NET PC software, Configuration, Guideline, SOFTNET DP, DP-5613

Configuration Notes:
In this example, a CP5611 is used for the S7 communication via a user application with a S7 station on the PROFIBUS.

Note:
The procedure described here also applies for communication processors CP5613/14 (A2), CP5621 and CP5511/CP5512.

General Information:
The requirement is that one of the two following configuration tools is installed.

• NCM PC:
  NCM PC is supplied with the SIMATIC NET CD and permits you to create PC projects and open STEP 7 projects. However, it is not possible to use this software to edit the S7 blocks in the STEP 7 project.
• STEP 7:
  STEP 7 is a separate software package and permits you to create S7-400, S7-300 and PC projects. It is possible to use this software to edit the S7 blocks.

Only one of these tools can be installed.

Please follow the instructions below for configuring the PC station.

Guideline_S7_PB_App_e.pdf ( 1151 KB )

Keywords:
Application, S7 connection, PROFIBUS, Guidelines, SOFTNET S7, S7-5613, Create connections, CP5611 A2, CP5621, CP5613 A2, CP5614 A2, CP5511, CP5512.

Configuration Notes:  
In this example, a CP5611 is used for the S7 communication via the OPC server to an S7 controller on the PROFIBUS.

Note:
The procedure described here also applies for communication processors CP5613/14 A2, CP5621 and CP5511/CP5512.

General information:
The requirement is that one of the two following configuration tools is installed.

• NCM PC: 
  NCM PC is supplied with the SIMATIC NET CD and permits you to create PC projects and open STEP 7 projects. However, it is not possible to use this software to edit the S7 blocks in the STEP 7 project.
• STEP 7:  
  STEP 7 is a separate software package and permits you to create S7-400, S7-300 and PC projects. It is possible to use this software to edit the S7 blocks.

Please follow the instructions below for configuring the PC station.

Guideline_S7_PB_e.pdf ( 1454 KB )

Keywords:
OPC server, S7 connection, PROFIBUS, Guidelines, SOFTNET S7, S7-5613, Create connections, SIMATIC NET PC software, CP5611 A2, CP5621, CP5613 A2, CP5614 A2, CP5511, CP5512.

Configuration Notes:  
In this example, a CP5611 is used for the S7 communication via a user application with a SIMATIC S7 on the MPI bus.

Note:
The procedure described here also applies for communication processors CP5613/14 A2, CP5621 and CP5511/CP5512.

General information:
The requirement is that one of the two following configuration tools is installed.

• NCM PC:
  NCM PC is supplied with the SIMATIC NET CD and permits you to create PC projects and open STEP 7 projects. However, it is not possible to use this software to edit the S7 blocks in the STEP 7 project.
• STEP 7:
  STEP 7 is a separate software package and permits you to create S7-400, S7-300 and PC projects. It is possible to use this software to edit the S7 blocks.

Only one of these tools can be installed.

Please follow the instructions below for configuring the PC station.

Guide_S7_MPI_Appl_e.pdf ( 1229 KB )

Keywords:
S7 connection, MPI, Guidelines, SIMATIC NET PC software, SOFTNET S7 PROFIBUS, S7-5613, Create connections, CP5611 A2, CP5621, CP5613 A2, CP5614 A2, CP5511, CP5512.

Instructions:
In this example, a CP5611 is used to establish the FDL connection with a SIMATIC S5 95-U on the PROFIBUS via the OPC server.

Note:
The procedure described here also applies for communication processors CP5613/14 (A2), CP5621 and CP5511/CP5512.

General Information:
The requirement is that one of the two following configuration tools is installed.

• NCM PC: 
  NCM PC is supplied with the SIMATIC NET CD and permits you to create PC projects and open STEP 7 projects. However, it is not possible to use this software to edit the S7 blocks in the STEP 7 project.
• STEP 7:  
  STEP 7 is a separate software package and permits you to create S7-400, S7-300 and PC projects. It is possible to use this software to edit the S7 blocks.

Only one of these tools can be installed.

Please follow the instructions below for configuring the PC station.

Guide_FDL95U_OPC_e.pdf ( 2332 KB )

Keywords:  
FDL connection, OPC server, SIMATIC NET PC software, Configuration, Guidelines, SOFTNET DP, CP5613 A2, CP5614 A2, CP5611 A2, CP5511, CP5512, CP5621, SOFTNET S7, LSAP, Send, Receive, S5 95U, COM DB1

Instructions:
In this example, a CP5611 is used to establish the FDL connection with an S7 station on the PROFIBUS via the OPC server.

Note:
The procedure described here also applies for communication processors CP5613/14 A2, CP5621 and CP5511/CP5512.

General information:
The requirement is that one of the two following configuration tools is installed.

• NCM PC: 
  NCM PC is supplied with the SIMATIC NET CD and permits you to create PC projects and open STEP 7 projects. However, it is not possible to use this software to edit the S7 blocks in the STEP 7 project.
• STEP 7:  
  STEP 7 is a separate software package and permits you to create S7-400, S7-300 and PC projects. It is possible to use this software to edit the S7 blocks.

Only one of these tools can be installed.

Please follow the instructions below for configuring the PC station.

Guide_FDLS7_OPC_e.pdf ( 1670 KB )

Keywords:  
FDL connection, SIMATIC NET OPC server, SIMATIC NET PC software, Configuration, Guidelines, SOFTNET DP, SOFTNET S7, Send, Receive, CP5611 A2, CP5613 A2, CP5614 A2, CP5511, CP5512, CP5621

Instructions:
In this example, a CP5611 is used to establish the FDL connection with an S5 station on the PROFIBUS via the OPC server.

Note:
The procedure described here also applies for communication processors CP5613/14 A2, CP5621 and CP5511/CP5512.

General information:
The requirement is that one of the two following configuration tools is installed.

• NCM PC: 
  NCM PC is supplied with the SIMATIC NET CD and permits you to create PC projects and open STEP 7 projects. However, it is not possible to use this software to edit the S7 blocks in the STEP 7 project.
• STEP 7:  
  STEP 7 is a separate software package and permits you to create S7-400, S7-300 and PC projects. It is possible to use this software to edit the S7 blocks.

Only one of these two configuration tools can be installed.

Please follow the instructions below for configuring the PC station.

Guide_FDLS5_OPC_e.pdf ( 2145 KB )

Keywords:  
FDL connection, Send, Receive, OPC server, SOFTNET S7, SOFTNET DP, CP5613 A2, CP5614 A2, CP5611 A2, CP5511, CP5512, CP5621  Guidelines,  LSAP, CP5431

QUESTION:
What do I have to consider when connecting a PC to a S7-300 and  S7-400?

ANSWER:
In figure 1 you see a configured connection from an OPC-Server to a SIMATIC 400 and an unconfigured connection from a OPC-Server to the SIMATIC 300. 

Figure 1  Connection configuration in NETPRO

Figure 2  Configured connection (S7 400)  

Figure 3:  Unconfigured connection (S7-300)

In figure 2 you can see that a bi-directional connection has been configured for the SIMATIC 400.

In figure 3 you can see that a uni-directional connection has been configured for the SIMATIC 300.

After the connection has been established the configuration has to be transferred to the PC station.

Detailed informationen about this topic can be found on the SIMATIC NET CD under "Advanced PC Configuration" 

ATTENTION:
The configured connection has to be transferred also onto the S7-400 station.

Explanation:
When configuring a connection to a S7-400 in NETPRO, the project has to be transferred to both stations, here the "PC_Station" and the "SIMATIC 400", with "Load to station". This is called a configured connection. The S7 connections that have been defined on the server as well as on the client side - e.g. from the PC to a AS S7-400 station - are called also bi-directional connections.

When configuring a connection to a S7-300 in NETPRO, the project has to be transferred only to the PC station. This is an unconfigured connection. S7 connections that are defined only on the client side - e.g. from a PC to an AS S7-300 station - are also called uni-directional.

Instructions:
In this example, a CP5611 is used for the communication via the OPC server as DP slave with an S7 station as DP master on the PROFIBUS.

Note:
The procedure described here also applies for communication processors CP5511, CP5512 and CP5621.

General information:
You can choose between two different configuration tools:

• NCM PC:
  NCM PC is supplied with the SIMATIC NET CD and permits you to create PC projects and open STEP 7 projects. However, it is not possible to use this software to edit the S7 blocks in the STEP 7 project. 
• STEP 7:
  STEP 7 is a separate software package and permits you to create S7-400, S7-300 and PC projects. It is possible to use this software to edit the S7 blocks.

Please follow the instructions below for configuring the PC station.

Guide_DPSlave_e.pdf ( 1366 KB )

More information on using and configuring a PC station as DP slave or DP master is available in the applications listed below:
 

Title of application	Entry ID
Distributed Automation with the PC - The SIMATIC NET OPC Server as PROFIBUS DP Slave	21040390
Controlling with the PC - The SIMATIC NET OPC Inproc Server as DP Master	21045282

Keywords:
DP-Slave, CP5611, CP5511, CP5512, CP5621, Hardware Configuration, SIMATIC NET PC software, Configuration, Guidelines, SOFTNET DP slave, Link DP slave, PC station.

Instructions:
In this example, a CP5611 is used for the S7 communication via the SIMATIC NET OPC server to an S7 controller on the MPI bus.

Note:
The procedure described here also applies for communication processors CP5613, CP5511 and CP5512.

General information:
The requirement is that one of the two following configuration tools is installed.

• NCM PC: 
  NCM PC is supplied with the SIMATIC NET CD and permits you to create PC projects and open STEP 7 projects. It is not possible to use this software to edit the S7 blocks in the STEP 7 project.
• STEP 7:
  STEP 7 is a separate software package and permits you to create S7-400, S7-300 and PC projects. It is possible to use this software to edit the S7 blocks.

Only one of these configuration tools can be installed.

Please follow the instructions below for configuring the PC station.

Guide_S7_MPI_e.pdf ( 1741 KB )

Keywords: 
OPC server, S7 connection, MPI, Guideline, Instructions, SOFTNET S7, S7-5613, Set up connection, SIMATIC NET PC software

Instructions:
Information about "Configuring connections" is available under 25346806.