Profibus Getting Started User's Manual

Transcription

1 Profibus Getting Started User's Manual Version: 1.00 (July 2006) Model No.: MAPBGETST-ENG We reserve the right to change the contents of this manual without warning. The information contained herein is believed to be accurate as of the date of publication; however, Bernecker + Rainer Industrie-Elektronik Ges.m.b.H. makes no warranty, expressed or implied, with regards to the products or the documentation contained within this book. In addition, Bernecker + Rainer Industrie-Elektronik Ges.m.b.H. shall not be liable in the event of incidental or consequential damages in connection with or resulting from the furnishing, performance, or use of these products. The software names, hardware names, and trademarks used in this document are registered by the respective companies. Profibus Getting Started User's Manual V

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3 Chapter 1: General information Chapter 2: SIMATIC Manager Chapter 3: B&R Fieldbus Configurator Figure index Table index Index Profibus Getting Started User's Manual V

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5 Table of contents Chapter 1: General information Manual history Integration of Profibus DP bus controllers X20 Profibus DP bus controller X67 Profibus DP bus controller GSD file B&R BC Profibus GSD User's Manual B&R BC Profibus Design Tool Chapter 2: SIMATIC Manager Siemens SIMATIC software Requirements Software Hardware Project environment Creating a new project manually Installing the GSD file Integration of Profibus DP bus controllers X2X Link extension Configuring the I/O modules Variable assignments Downloading the Configuration Controlling the modules Chapter 3: B&R Fieldbus Configurator Introduction Integrating the GSD file User interface Directory structure Viewing the GSD file Creating a Profibus DP configuration Inserting a master Master configuration Bus parameters Inserting a slave Slave Configuration Parameter data DPV1 parameter Online connection Downloading the created configuration Result of the configuration Controlling the modules Project configuration in Automation Studio Requirements in Automation Studio Communication profile

6 Table of contents Creating a BR module Inserting a BR module Configuration of a B&R Profibus DP bus controller Initialization I/O data traffic Transferring project to controller

7 General information Manual history Chapter 1 General information Chapter 1 General information 1. Manual history Version Date Comment 1.00 July 2006 First version Table 1: Manual history 7

8 General information Integration of Profibus DP bus controllers 2. Integration of Profibus DP bus controllers The purpose of this Getting Started document is to describe the integration of B&R Profibus DP bus controllers as slaves in Profibus master systems. This includes integrating them in a Siemens SIMATIC environment as well as an example project created with the B&R Fieldbus Configurator. The range of B&R Profibus DP bus controllers includes modules from the X67 and X20 systems. All B&R Profibus DP bus controllers support X2X Link. The main goal here is to decentralize the backplane of a rack system. The cable replaces the backplane that connects all of the modules. Directly connected X20, X67 and XV modules can be arranged in intervals of up to 100 m past the confines of the switching cabinet. 2.1 X20 Profibus DP bus controller The X20 Profibus DP bus controller X20BC0063 makes it possible to connect X2X Link I/O nodes to the Profibus DP. It supports Profibus DP with all of its options and other additional properties. In addition to the device diagnostics, module diagnostics, and channel diagnostics provided with the Profibus standard, it is also possible, for example, to switch to the slot diagnostics option in S7 format. X20 or other modules that are based on X2X Link can be connected to the bus controller. For a detailed description of the X20BC0063, including a list of required accessories, refer to the User's Manual for that particular module. Technical details are listed in the corresponding data sheet. Model number Short description Image X20BC0063 X20 bus controller fieldbus interface, 1 Profibus DP interface, status indicator LEDs, 9-pin DSUB connection 2.2 X67 Profibus DP bus controller Table 2: X20 Profibus DP bus controller In addition to the characteristics already named in reference to the X20 bus controllers, the X67 Profibus DP bus controller X67BC6321 has an additional latch function for very fast events that can be scanned using digital mixed modules. The two additional variants of the X67BC6321 module, identified by the extension at the end of the name (X67BC6321.L08 and X67BC6321.L12), differ with regard to the number of digital channels and type of connections. For more detailed information regarding the product and its configuration options, refer to the User's Manual or data sheet for the module. 8

9 information GSD file The following table presents an overview of the various X67 Profibus DP bus controllers. Model number Short description Image X67BC6321 X67 Profibus DP bus controller, X2X Link supply 3 W, 8 digital channels can be configured as input or output, 24 VDC, 0.5 A, configurable input filter, 2 event counters 20 khz, LED status indicators Chapter 1 General information X67BC6321.L08 Profibus DP bus controller, X2X Link supply 15 W, 16 digital channels can be configured as inputs or outputs, 24 VDC, 0.5 A, configurable input filter, 2 event counters 50 khz, M8 connectors, LED status indicators X67BC6321.L12 Profibus DP bus controller, X2X Link supply 15 W, 16 digital channels can be configured as inputs or outputs, 24 VDC, 0.5 A, configurable input filter, 2 event counters 50 khz, M12 connectors, LED status indicators The following refers to Profibus DP bus controllers in general. The variants are only discussed with respect to actual variations in the creation of the project. 3. GSD file Table 3: X67 Profibus DP bus controller For successful integration of a B&R Profibus DP bus controller in the Engineering Tool, the corresponding GSD file must be imported. The GSD files for the modules listed above are available on the B&R homepage ( Entering a model number or serial number under "Product Search" brings up the corresponding product information. The download area for each module has a link to the GSD Package. This contains a number of graphic files, the "B&R BC Profibus GSD User's Manual", and the "B&R BC Profibus Design Tool", in addition to the necessary GSD file. Before you download the file, you can select a version number (e.g. V2.18). When integrating a Profibus controller in another engineering tool for the first time, it is recommended to use the highest available version. 9

10 General information B&R BC Profibus GSD User's Manual It is not necessary to update a previously integrated GSD file, since using a newer GSD file might require the latest firmware. A firmware update cannot be performed by the user. After extracting the compressed file, the GSD file can be found in the "Import" folder. Figure 1: Downloading the GSD file 4. B&R BC Profibus GSD User's Manual The B&R BC Profibus GSD User's Manual contains more detailed information about GSD files. This includes a more in-depth explanation of the above mentioned version dependencies and firmware versions. In addition to instructions for installing the GSD file, it also contains instructions for configuring the bus controller and I/O modules. Furthermore, the manual also contains explanations of various diagnostic options and detailed register descriptions. 5. B&R BC Profibus Design Tool The B&R BC Profibus Design Tool makes it possible to test the feasibility of potential bus configurations. After selecting the bus controller, the local I/O, and the X2X cycle time, all conceivable variations of the connected I/O modules can be configured. If the combination entered is technically feasible, the status indicator will read "Ok". The total number of modules selected is listed in parentheses. The bus controller itself is counted automatically, so at least one module is always configured. If there are conflicts in the configuration, the status indicator reads "Parameter frame too big (Profibus DP Standard)". The X2X cycle time input field has a selection of times from 200 µs to 1 ms. The desired number of I/O modules can be entered in the gray "Used" column. The order of I/O modules on the bus is irrelevant here; only data related to power is relevant. X67 supply modules (X67PS1300) cannot be configured, and do not need to be, since as purely electronic modules for power supply they do not carry any I/O data traffic. All other modules 10

11 General information B&R BC Profibus Design Tool require an entry. To make the configuration process as simple as possible, the "Available" column lists the maximum possible number of each module. It is dynamic, and is automatically updated after every entry. When you have selected the X20BC0063, the only local I/O available is the required X20PS9400. This is not the case with the X67 bus controllers. For these modules, there are several local I/Os to select from. They are are identified by the extension "-CO1, -CO2,..." at the end of their name. This describes the register assignment in the module, and is described in the B&R BC Profibus GSD User's Manual. If no selection is made here, the value suggested by the Design Tool can be used. Chapter 1 General information The following image shows a section of the B&R BC Profibus Design Tool. Figure 2: Section of the B&R BC Profibus Design Tool 11

12 General information B&R BC Profibus Design Tool 12

13 SIMATIC Manager Siemens SIMATIC software Chapter 2 SIMATIC Manager 1. Siemens SIMATIC software Much of the following information can also be found in the manual "SIMATIC, Configure Hardware and Connections with STEP 7" for the SIMATIC STEP 7 software from Siemens. This is available free from the documentation area under the address The screen shots seen here were also created using the SIMATIC software from Siemens. Chapter 2 SIMATIC Manager 2. Requirements 2.1 Software For an engineering tool, the SIMATIC STEP7 V5.4 software package from SIEMENS is used. The following screen shots are taken from this version. The B&R Profibus DP bus controllers can also be used with older software versions without problems, however. There may be differences in the layout of the user interface, but the menu structure has mainly been kept the same. There should be no problems integrating the bus controllers using this document as a reference. 2.2 Hardware A Profibus master is required in order to use any of the B&R Profibus DP bus controllers. For an example configuration, we selected a SIMATIC S7-300 station with the CPU315-2DP. It takes the role of the Profibus master, and serves as the starting point for the integration. In order to program the CPU and access it for diagnostics, an online connection is required. Configuration options for the programming interface, like using a PC adapter for example, can be found in the Online Help for the SIMATIC Manager as well as in the appropriate User's Manual. 2.3 Project environment A new GSD file can only be added to an open project. Either an existing project can be opened or a new one can be created. This is done using the "New Project Wizard" or entered manually. 13

14 SIMATIC Manager Requirements Creating a new project manually A new project can be created in the SIMATIC Manager from the menu under: File->New. Under the "User Projects" tab, you can assign a project name (in this case "test") and choose where to save the project. Select "Project" as the project type. No settings need to be made under the "Libraries" and "Multiprojects" tabs. Figure 3: Creating a new project Once the project is created, the hardware must be configured. In the menu, under Insert->SIMATIC 300 Station, you can add a SIMATIC 300 station. The user can choose a name for the station. Here we used the name "SIMATIC 300(1)". Figure 4: Selecting the SIMATIC 300 station The selected SIMATIC 300 station is then listed in the project folder "test". When you select the SIMATIC 300(1) station, an icon appears in the right window for configuring the hardware. A double click opens the hardware configuration window. 14

15 SIMATIC Manager Requirements Figure 5: Inserted SIMATIC 300 station In order to add the desired components, the hardware catalog must be made visible under View->Catalog. Alternatively, components can be added via Insert->Insert Object. Chapter 2 SIMATIC Manager Figure 6: Hardware configuration window A mounting rail is used as a foundation for further configuration (SIMATIC300/Rack-300/Rail). The CPU315-2DP is then added to this (SIMATIC300/CPU-300/CPU315-2DP). This is only possible on slot 2, since slot 1 is reserved for the supply voltage. After it is added, a configuration window opens for the fieldbus connection. If the project does not yet have a Profibus connection, a new one can be created using the "New" button. The engineering tool automatically suggests a name (PROFIBUS(1)) as well as the Subnet ID. The Subnet ID is a combination of the project number and the subnet number. It is important if you want to go online with a programming device and no corresponding project exists. If no other entries are known, the values suggested by the engineering tool can be used. No settings need to be made under the "Network Settings" tab. The automatically entered values are the standard Profibus configuration. This also applies to the "Options" and "Bus Parameters" 15

16 SIMATIC Manager Requirements settings. The baud rate can be set between 9.6 kbits/s and 12,000 kbits/s. Both the X20BC0063 and the X67BC6321 have automatic baud rate detection and support the entire available range of baud rates. Figure 7: Creating a Profibus network The following image shows the CPU315-2DP on slot 2 and the newly created PROFIBUS(1) network connection. Figure 8: Profibus connection 16

17 SIMATIC Manager Installing the GSD file 3. Installing the GSD file The GSD file can only be imported using the hardware configuration window. This can be opened by clicking once on the "SIMATIC 300(1)" station, and then double-clicking on "Hardware". Chapter 2 SIMATIC Manager Figure 9: Selecting hardware configuration Select "Install GSD file" from the "Options" menu. Figure 10: Installing new GSD files In the window that opens, you can choose to install the GSD file from a Step 7 project or from another directory. Use the "Browse" function to select the appropriate path. The GSD files to insert are listed in the lower area of the window. With the "Install" button, the GSD files can be inserted in the hardware catalog. Please keep in mind that the installation of a new GSD file cannot be undone. A successful installation is confirmed with a message window. 17

18 SIMATIC Manager Installing the GSD file Selection window for GSD files to be imported: Figure 11: Importing the GSD file After selection and installation of the GSD file, the imported B&R Profibus DP bus controllers are found in the folder Profibus DP/Additional Field Devices/I/O/B&R. They are now completely integrated and can be configured with all the corresponding I/O modules. Figure 12: Integrated GSD files in the hardware catalog 18

19 SIMATIC Manager Integration of Profibus DP bus controllers 4. Integration of Profibus DP bus controllers B&R Profibus DP bus controllers are added in the network connection view "Connections". This can be opened when CPU315-2DP is selected. Figure 13: Selecting the network connections view Chapter 2 SIMATIC Manager For the Profibus DP bus controller to be connected successfully, the DP interface of the SIMATIC 300(1) station on the CPU315-2DP must be active. When active, is it is highlighted (see image below). After integrating the bus controller, a configuration window opens. The only thing to configure is the address. All other settings can be left as they are. Important: the selected addresses must match the node numbers set on the bus controller. Figure 14: Integrating the bus controllers 19

20 SIMATIC Manager Integration of Profibus DP bus controllers Information: Both X67 and X20 Profibus DP bus controllers only take on the newly assigned node numbers after a restart! Figure 15: X20BC node number switches Figure 16: X67BC node number switches On the X67BC6321 the left node number switch should be multiplied by 16. After a successful integration, the configuration should like this: Figure 17: Integrated X67 bus controller 20

21 SIMATIC Manager X2X Link extension 5. X2X Link extension Open the hardware configuration by double-clicking on the B&R bus controller symbol in the network connections view. The desired I/O modules can be added to the bus controller from the hardware catalog. Unlike with the B&R BC Design Tool, the order of modules does play an important role here. The positions/slot numbers of the I/O modules must match the actual physical structure. Since the Profibus DP bus controller X67BC6321 includes the X67DM1321 module, this is automatically positioned at slot 1. In configurations with the X20 bus controller X20BC0063, the required power supply module X20PS9400 is positioned at slot 1. All other slot assignments can be chosen freely. In the example, an X67DO1332-C01 and an X67DI1371-C01 are connected to the X2X Link. The engineering tool automatically assigns the I/O addresses, and this can be ignored for now. Chapter 2 SIMATIC Manager Figure 18: X2X Link extension 21

22 SIMATIC Manager X2X Link extensionwww.infoplc.net 5.1 Configuring the I/O modules Right-click and select "Object Properties" to configure the various I/O modules. Figure 19: Configuring the I/O modules Under the "Address/ID" tab you can assign addresses manually. In the "Parameter Assignment" section, in the "Device-specific parameters" folder, it is possible, for example, to manually set the digital channels of the X67DM1321 module as inputs or outputs. The values provided in the "Hex parameter assignment" folder should not be changed. These hex number combinations are automatically generated from the selected configuration. If a particular I/O module does not require configuration, then no "Device-specific parameters" folder is displayed. 22

23 SIMATIC Manager Downloading the Configuration 5.2 Variable assignments Variable names can be assigned in the "Edit Symbols" window. Right-clicking on an I/O module opens the configuration window for that module. Every channel can be assigned symbolic names and detailed comments. Chapter 2 SIMATIC Manager 6. Downloading the Configuration After making the desired configurations and module assignments as well as the corresponding software configuration, the configuration is transferred to the controller (CPU315-2DP). To begin the transfer process, the project must be saved and compiled. In the hardware or network connections views, this can be done using the menu option Station/Network->Save and Compile. Control data is downloaded using the Download button, or using the menu option PLC->Download (Download to Current Project) while the SIMATIC station is selected. A project can also be downloaded in the hardware or network connections views. After selecting the controller onto which the new project is to be transferred, the necessary interface can be configured. Use "View" to see a list of all available stations. In order to program the controller, it must be temporarily set to "STOP". This message should also be acknowledged with "OK". After the download is complete, the CPU will restart after asking for confirmation. 7. Controlling the modules Figure 20: Variable assignments In order to quickly and simply test, for example, a module's outputs, there is the "Monitor/Modify" function. This can be called up when in hardware view by right-clicking on a module. The modified values can be entered and then assigned by selecting "Modify". The "Monitor" function monitors the inputs and outputs and displays their current status. 23

24 SIMATIC Manager Controlling the modules Figure 21: Monitor/Modify function In the above screenshot, the outputs Q1.0 and Q1.1 of the X67DO1332 output module were set to TRUE and visually represented using the "Monitor" function. Active outputs can also be identified by the corresponding LEDs on the module. 24

25 B&R Fieldbus Configurator Introduction Chapter 3 B&R Fieldbus Configurator 1. Introduction The B&R Fieldbus Configurator makes it possible create a uniform configuration for the most popular fieldbus systems, such as Profibus, CANopen, and DeviceNet. Standardized configuration files (GSD, ESD files) are used to configure the various bus stations. A graphic editor is used to configure the bus and the corresponding bus stations. Additionally, the B&R Fieldbus Configurator can create BR files (with the ending ".br"). These are needed to configure the stations in the Profibus network for a project using Automation Studio. 2. Integrating the GSD file When the program starts, the B&R Fieldbus Configurator automatically reads all GSD files which are stored in its GSD directory. The device names are recorded in an internal list. The device specific data is read from the GSD file during the configuration. If a DP slave device is required that does not yet appear in the selection list, it must be added. There are two ways to do this. Either via the user interface itself or within the directory structure of the B&R Fieldbus Configurator. Chapter 3 B&R Fieldbus Configurator 2.1 User interface New GSD files can be integrated via the menu under File->Copy GSD. In the window that opens, the source path of the desired GSD file (".gsd") can be entered. A copy of the selected file is saved in the GSD folder of the B&R Fieldbus Configurator. Be sure that the files you are importing are not write protected. In addition to the GSD file, the graphic files needed to display the module in the Configurator are also imported. A message box will appear to acknowledge the successful copy of the GSD file and the corresponding bitmap files. 2.2 Directory structure All GSD files imported into the Configurator are saved in one folder. This folder is found here: BrAutomationTools\BRFBCfg\Fieldbus\PROFIBUS\GSD. GSD files to be added can be placed in this folder. To ensure a successful integration, the files must have the format "*.gsd". The Configurator's GSD folder can be moved anywhere in the directory structure. It is also possible to create a new folder. 25

26 B&R Fieldbus Configurator Integrating the GSD file Figure 22: GSD folder It is important to remember, however, that the B&R Fieldbus Configurator can only use one folder as a reference for the GSD database. All necessary GSD files must therefore be stored in this folder. The path for the GSD folder can be set in the menu under: Settings\Path. In the field "GSD File Directory", you can enter the path for the folder containing the GSD files. There is also the option of setting both the "Extension" of the GSD files to be imported as well as the "Project File Directory". If you do not wish to change them, the default values can be used. For the Configurator to apply the changes you have made, the software must be restarted. GSD files specified by the PNO (PROFIBUS user organization) for PROFIBUS FMS are not supported by the B&R Fieldbus Configurator. 2.3 Viewing the GSD file Figure 23: Path of the GSD folder Using the viewing window Tools->GSD Viewer you can display more detailed information about the selected GSD file. In addition to general information such as module name and ID number, you can also display the revision number and supported baud rates. All values listed in the GSD Viewer are read-only, and cannot be changed. By clicking on "More", you can see notes regarding, for example, the maximum length of inputs and outputs. All graphic files for the module are listed in the "Layout" selection. The "Identifier" button reveals addressing information about each of the integrated modules. 26

27 B&R Fieldbus Configurator Integrating the GSD file Figure 24: GSD file information Chapter 3 B&R Fieldbus Configurator 27

28 B&R Fieldbus Configurator Creating a Profibus DP configuration 3. Creating a Profibus DP configuration Select File->New to create a new configuration. All installed fieldbus systems are shown in a list. In this example, "PROFIBUS" should be selected as the fieldbus. The name of the newly created project can be assigned at the end or with the function File->Save As. 3.1 Inserting a master A master can be inserted using the menu option Insert->Master. This can be also be done using the appropriate icon. A selection window opens, which lists all available masters on the left side. Here you have the chance to assign masters a station address and a description. These can be edited at any time when configuring the individual masters. In the example below, the apci interface module 3IF766.9 is selected (Profibus DP master). Figure 25: Master selection After selecting the master (3IF766.9), the configuration will look like this: Figure 26: Selecting a DP master - 3IF

29 3.1.1 Master configuration B&R Fieldbus Configurator Creating a Profibus DP configuration By placing the focus on the master and selecting the menu option Settings->Master Settings, double-clicking on the master, or via the right-click menu, you can open the master configuration window. The following settings are possible: Station address of master (Symbolic) description of the master Selection of the master as the current master (e.g. to execute a download) For Profibus DP there are additional setting options: To open the DP Master Settings window To activate/deactivate auto addressing Auto addressing means that: The addresses are assigned starting at 0 and increasing according to the entry order of the slaves. They can be displayed and checked under the menu option View->Address table. The information is updated when you save the configuration, view the address table, or before you download. When auto addressing is deactivated, the user must enter the addresses for the slaves manually. Chapter 3 B&R Fieldbus Configurator Figure 27: Master configuration window After clicking on the "DP Master Settings" button, the following settings can be made for the master: Startup behavior after system initialization If "Automatic release of the communication by the device" is selected, the master device starts with the data exchange on the bus immediately after the initialization has completed. When "Controlled release of the communication by the application program" is selected, data exchange on the bus is initialized by the application program. This option guarantees that no 29

30 B&R Fieldbus Configurator Creating a Profibus DP configuration unwanted states reach the outputs, since the application program has complete control over the I/O data traffic. However, this requires systematic control of the modules by the application program. The following example configuration is executed using Automation Studio. User program monitoring The watchdog time determines how long the device waits for the software watchdog to be triggered by the application program until it sets the outputs of the slave device to zero. This action does not start automatically and must be enabled by the application program. Addressing mode The addressing mode for the process data determines how the process data addresses (offsets) are interpreted. Byte addressing and word addressing are both possible. Storage format (word module) The storage format determines how the data words are stored in the process image. For the word format, you can switch between Big or Little Endian addressing. Handshake of the process data This is for setting the handshake process of the process data between the application and the master. This selection is important for the correct data exchange between the application program and the device. The handshake selected must be supported by the application program. This is the case, for example, for "buffered, host controlled" and for "bus synchronous, host controlled". The option "no consistence, uncontrolled" is useful for quick, simple diagnostics. Hardware parameter Figure 28: Master settings 30

31 B&R Fieldbus Configurator Creating a Profibus DP configuration The size of the hardware's dual port memory is specified with this parameter. The value increases or decreases the valid address range for the process data addresses. This is only a static display of the value. It cannot be changed. For the following example, the settings should be made to match those in the above screenshot. 3.2 Bus parameters Using menu option Settings->Bus Parameter, the baud rate can be set between 9.6 kbits/s and 12,000 kbits/s. Both the X20BC0063 and the X67BC6321 have automatic baud rate detection and support the entire available range of baud rates. 3.3 Inserting a slave A Profibus DP slave can be inserted into the configuration via menu option Insert->Slave, or by clicking on the appropriate icon. All slave devices which have GSD files stored in the GSD directory are available for selection and displayed in the list on the left. A filter can be used to limit the selection list to certain slave types (I/O slave, PLC, etc.) or vendors. Additional information regarding the individual slaves can be found below the "Available slaves" selection list if they have been selected.. The slave appears in the list on the right by double clicking or by clicking on the Add button. All devices in the list on the right are assigned to the current master, which is also displayed in this window. Chapter 3 B&R Fieldbus Configurator Figure 29: Slave selection window 31

32 B&R Fieldbus Configurator Creating a Profibus DP configuration The station address automatically increases by one with each slave added to the list on the right. The station address and the slave name can be changed at any time in the slave configuration window. Information: Both X67 and X20 Profibus DP bus controllers only take on the newly assigned node numbers after a restart! Figure 30: X20BC node number switches Figure 31: X67BC node number switches Note: A slave can be selected more than once. However, each slave must have its own unique station address to tell it apart from other slaves on the network. Important: the station addresses entered must match the node numbers set on the bus controller. In the example configuration, the Profibus DP bus controller X67BC6321 is selected as slave. It connects the Profibus DP network with the X2X Link. If multiple masters are configured in a project, it is important to ensure that when the slaves are inserted they are assigned to their corresponding masters (this can be selected in the top right of the "Init Slave" window or in the slave configuration). Figure 32: Master - Slave example configuration 32

33 3.3.1 Slave Configuration B&R Fieldbus Configurator Creating a Profibus DP configuration The slave configuration window opens with a double-click on the desired slave or via the menu option Settings->Slave Configuration. In this window, modules and their addresses are assigned in the process image memory of the master. Important: The addresses entered must match the ones in the PC application. General settings Module selection Chapter 3 B&R Fieldbus Configurator Configured modules Figure 33: X67BC slave configuration window The general settings of the slave configuration include station address and slave name. Depending on whether the "Activate device in actual configuration" field is selected, the slave can be activated or deactivated in the current fieldbus configuration. If this is deactivated, process memory is used in the master for this slave, however no data exchange occurs from the master to this slave. A deactivated slave is crossed out in the graphic view. The "Enable watchdog control" function activates communication monitoring. This is used by the slaves to identify communication errors to the corresponding DP master. If the DP slave determines an interruption in its communication with the master, defined by the monitoring time, then the slave independently resets and sets the outputs to a safe state. If this function is deactivated and the master fails during the communication, the slave outputs are not reset. This may result in dangerous situations! Think carefully, therefore, before turning off the watchdog monitoring. 33

34 B&R Fieldbus Configurator Creating a Profibus DP configuration Another feature of the general setting area is information about the slave configuration. The information includes the maximum number of connected modules and the actual current number of connected modules. The information about the maximum data lengths for input and output data compared to the actually configured lengths can be helpful for address management. In the middle section there is a display window with the current module selection. All modules that are integrated and available for selection are listed here. For each module there is information about the required input and output bytes. The lower section lists the already configured modules. This list can be adjusted by removing or adding modules from the module selection. Be sure that the slot assignments match the actual physical structure! Since the Profibus DP bus controller X67BC6321 includes the X67DM1321 module, it must always be positioned at slot 1. All other slot assignments can be chosen freely. With configurations using the X20 bus controller X20BC0063, remember that slot 1 must always be reserved for the power supply module X20PS9400. All other slot assignments can be chosen freely. I/O addresses can be entered by the user or automatically assigned using the B&R Fieldbus Configurator. This is done using the "auto addressing" function, which can be activated in the master configuration. Offset address specifications apply to data addressing in the master. Address specifications do not apply to data addressing in the slave. The slave organizes its own data addressing. Input and output data from the slave is transferred on the bus directly to dual port memory. Offset addresses refer to the master. There are two types of slaves: a simple slave has a fixed data length. A modular slave has a data length which can be configured. A modular slave is basically a combination of simple slaves with one station address. Clicking on the "Symbolic Names" button, you can assign symbolic names to the modules and individual bits. Previously defined and saved modules can be added to the configuration using the "Predefined Modules" button Parameter data Clicking on the "Parameter Data" button in the slave configuration or by selecting menu option Settings->Parameter Data with the slave selected opens the window for editing parameter data. This data is generated based on the number of modules used and their configuration and should not be altered. 34

35 B&R Fieldbus Configurator Creating a Profibus DP configuration Figure 34: Parameter data Clicking on the "Common" button brings up general information about the data format being used and the X2X cycle time. Chapter 3 B&R Fieldbus Configurator Figure 35: General parameters The "Module" button takes you to a list of modules (if multiple modules are configured) for configuring the individual modules. Figure 36: List of modules for configuration 35

36 B&R Fieldbus Configurator Creating a Profibus DP configuration For the X67DM6321 all digital channels have been set as outputs. Figure 37: Digital channels set as outputs The following image shows the configuration of a temperature module (not part of the example configuration) DPV1 parameter Figure 38: Configuration of a temperature module Clicking on the "DPV1 settings" button in the slave configuration opens the editing window for the DPV1 parameter. DPV1 is used for non-cyclic data exchange and is used for read, write and alarm editing functions. Note: Neither X20 nor X67 Profibus DP bus controllers support DPV1! 36

37 4. Online connection B&R Fieldbus Configurator Online connection An online connection is required to load the newly created configuration to the Profibus DP master. To select this and start the download, select menu option Online->Download. A window opens with a list of available interfaces. In this example, the serial interface will be used. To do this, select "CIF Serial Driver". Similarly, one could use the TCP/IP interface, for example. Information about the configuration options can be found in the online help for the B&R Fieldbus Configurator. Chapter 3 B&R Fieldbus Configurator Figure 39: Interface selection The serial interface selected on the programming device (PC) can be connected using the "Connect COM x" button. If the connection attempt fails, the appropriate error number is returned (see online help for the error codes). Only when the returned error value is "0" can the interface be used for communication. The following image shows a connection to the COM 2 interface. Figure 40: Selection - COM interface 37

38 B&R Fieldbus Configurator Online connection Downloading the created configuration If a connection has been established via the serial interface, the configuration can be transferred. If bus data traffic is already in progress, a message appears stating that both the master and the slave will be stopped for the attempted download. 4.2 Result of the configuration If in the master configuration the start up behavior after system initialization was set to "Automatic release of the communication by the device", then the Profibus DP slaves (in this case the B&R Profibus DP bus controllers) start automatically and should be in RUN mode, just like the master. When "Controlled release of the communication by the application program" is selected, the slave waits for the application program to initialize the start. This can be observed on the status LEDs. The status of the bus controllers is "Wait for Config" (X67BC6321: Status Indicator 1: Green/On, Red/Blinking) (X20BC0063: STATUS/On, ERROR/Blinking). The bus controllers are not switched to RUN mode until the the configuration is started in the application program. 4.3 Controlling the modules The network connections view is a quick and simple interface for controlling the module outputs. It can be opened with the menu option Window->Network View. The left column contains the logical network view, which shows both the master and the corresponding slaves. In the middle is a tag list, and to the right is the I/O watch window. Pulling selected bus elements from the left side into this window lets you monitor input and output data and assign the provided values. To do this, right-click on the desired element and choose "Start". Figure 41: Network view 38

39 B&R Fieldbus Configurator Project configuration in Automation Studio All selected modules are listed in a table view. For the X67DM1321 all digital channels have been set as outputs. The output values are also listed, since they are read back over the input channels. The output LEDs on the module should light up according to the value entered in the "Value" field. Figure 42: I/O watch Note: This is only possible with the "No consistence, uncontrolled" handshake. Otherwise the I/O master data are always overwritten by the I/O buffer. 5. Project configuration in Automation Studio To configure the Profibus DP slaves in Automation Studio, they must first be integrated. They cannot simply be inserted in the hardware tree as usual. A BR module must therefore be created using the B&R Fieldbus Configurator that contains the entire network configuration. This can then be inserted as a "System Object". Chapter 3 B&R Fieldbus Configurator 5.1 Requirements in Automation Studio In addition to the necessary BR files, the "DPMaster" library must be integrated in the library manager. This can be opened via Open->Library Manager. The "Insert Library" icon opens a selection window. In the "Add Library" section the "DPMaster" library can be selected and inserted. 5.2 Communication profile The settings in the B&R Fieldbus Configurator must be different than in the previous example to prevent unwanted states at the outputs. In the master configuration, the communication profile must be switched to "Controlled release of the communication by the application program" and the data traffic must be switched to "Buffered, host controlled". All other settings can be used as they are. 39

40 B&R Fieldbus Configurator Project configuration Automation Studio 5.3 Creating a BR module If you are satisfied with your configuration and all modules are set up, then a BR module can be created via menu option Tool->B&R->Generate DBM/BR Module. To do this the focus must be on the master in the graphic view. The creation of the BR module runs in the background. The the created files are stored in the project folder. A subfolder is created, with the same name as the master, which contains the entire configuration. If the project contains multiple masters, a subfolder is made for each one that contains the created files. These folders have the same names as the respective masters. The created BR files are named as follows: "dpm_xxx.br". Where "xxx" stands for the station number that was entered for the master. In addition to the ".br" file, a ".dpm" and a ".bak" file are also created. The following image shows two saved projects ("test00", "test01"). The project "test01" contains two masters ("Station_1" and "Station_5"). Since for "Station_5" the station number "5" was entered, the created files are named "dpm_005.***". Figure 43: BR module folder 40

41 B&R Fieldbus Configurator Project configuration in Automation Studio 5.4 Inserting a BR module Created BR modules can be inserted in an open Automation Studio project. A "System Object" can be inserted under the menu option Insert->New Object. The desired BR file can be selected and integrated. The inserted BR module can be found in the list of data objects. A project may look like this: Figure 44: Inserted BR module 5.5 Configuration of a B&R Profibus DP bus controller Chapter 3 B&R Fieldbus Configurator Integrating the BR module lays the foundation for the integration of the slave modules, yet these must still be initialized, started/stopped, and configured. The following example will describe a simple control of the outputs. A more detailed description of all FBKs used can be found in the in the Automation Studio online help under: The B&R Software\ Automation Runtime I/O management\ Bus systems and configuration\ Fieldbus\ Profibus DP\ DP Master Library\ FBK Description 41

42 B&R Fieldbus Configurator Project configuration Automation Studio Initialization Module initialization procedure: DPMInit When this function is called, the module specified by "DPMInit_0.Device" is initialized. In this case it is the interface module 3IF766.9 (SS1) with the PROFIBUS DP interface (IF2). DPMConfig Figure 45: Module initialization The "DPMConfig_0.DevIdent" parameter specifies the module on which a download should occur. Data is supplied by the "DPMInit" function. The "DPMConfig_0.ConfModulName" pointer specifies the name of the configuration module which should be loaded to this card. The previously created "dpm_000" from the configuration with the X67BC6321 (all channels set as outputs), the X67DO1332 and the X67DI1371 has been selected here. 42

43 5.5.2 I/O data traffic B&R Fieldbus Configurator Project configuration in Automation Studio In this example application, the outputs of the X67DM1321 and the X67DO1332 should be controlled. A variable is used to count upwards and send the result to the digital outputs. If an overrun occurs, it resets to 0 and starts again. Chapter 3 B&R Fieldbus Configurator Figure 46: Controlling the outputs DMPStart The "DPMStart_0.DevIdent" parameter specifies which master should be started. Data is supplied by the DPMInit function. DPMio This function block is attached to the previously selected buffered, master controlled communication profile. I/O data transfer is buffered by cyclically calling the FBKs from a task class and by the configured communication mode. The "DPMio_0.DevIdent" parameter specifies which B&R card the I/O data should copy. Data is supplied by the DPMInit function. This FBK copies the input and output data areas between the DPMaster and the specified buffers. Possible process data transfer procedures: Buffered, host controlled Bus synchronous, host controlled 43

44 B&R Fieldbus Configurator Project configuration Automation Studio 5.6 Transferring project to controller After the newly created project has been successfully compiled (Project->Build All) it can be transferred to the controller. (Project->Transfer to Target). To start the CPU, execute a warm restart (Project->Services->WarmRestart). 44

45 Figure index Figure 1: Downloading the GSD file Figure 2: Section of the B&R BC Profibus Design Tool Figure 3: Creating a new project Figure 4: Selecting the SIMATIC 300 station Figure 5: Inserted SIMATIC 300 station Figure 6: Hardware configuration window Figure 7: Creating a Profibus network Figure 8: Profibus connection Figure 9: Selecting hardware configuration Figure 10: Installing new GSD files Figure 11: Importing the GSD file Figure 12: Integrated GSD files in the hardware catalog Figure 13: Selecting the network connections view Figure 14: Integrating the bus controllers Figure 15: X20BC node number switches Figure 16: X67BC node number switches Figure 17: Integrated X67 bus controller Figure 18: X2X Link extension Figure 19: Configuring the I/O modules Figure 20: Variable assignments Figure 21: Monitor/Modify function Figure 22: GSD folder Figure 23: Path of the GSD folder Figure 24: GSD file information Figure 25: Master selection Figure 26: Selecting a DP master - 3IF Figure 27: Master configuration window Figure 28: Master settings Figure 29: Slave selection window Figure 30: X20BC node number switches Figure 31: X67BC node number switches Figure 32: Master - Slave example configuration Figure 33: X67BC slave configuration window Figure 34: Parameter data Figure 35: General parameters Figure 36: List of modules for configuration Figure 37: Digital channels set as outputs Figure 38: Configuration of a temperature module Figure 39: Interface selection Figure 40: Selection - COM interface Figure 41: Network view Figure 42: I/O watch Figure 43: BR module folder Figure 44: Inserted BR module Figure 45: Module initialization Figure 46: Controlling the outputs Figure index 45

46 Figure index 46

47 Table index Table 1: Manual history... 7 Table 2: X20 Profibus DP bus controller... 8 Table 3: X67 Profibus DP bus controller... 9 Table index 47

48 Table index 48

49 Index B B&R Fieldbus Configurator...25 G GSD file...9 GSD file download...9 GSD file version...9 GSD User's Manual...10 M Manual history...7 N P Profibus Design Tool S SIMATIC Step X X20BC X2X cycle time X2X Link... 8 X67BC X67BC6321.L X67BC6321.L Node number switches...20, 32 Index 49

50 Index 50