First Steps in Commissioning CPU 1 ___________________ Introduction 31xC: Positioning with analog output 2 ___________________ Preparation SIMATIC 3 ___________________ Learning units 4 ___________________ Further Information S7-300 First Steps in Commissioning CPU 31xC: Positioning with analog output Getting Started 08/2011 A5E00105537-03 Legal information Legal information Warning notice system This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are graded according to the degree of danger. DANGER indicates that death or severe personal injury will result if proper precautions are not taken. WARNING indicates that death or severe personal injury may result if proper precautions are not taken. CAUTION with a safety alert symbol, indicates that minor personal injury can result if proper precautions are not taken. CAUTION without a safety alert symbol, indicates that property damage can result if proper precautions are not taken. NOTICE indicates that an unintended result or situation can occur if the relevant information is not taken into account. If more than one degree of danger is present, the warning notice representing the highest degree of danger will be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to property damage. Qualified Personnel The product/system described in this documentation may be operated only by personnel qualified for the specific task in accordance with the relevant documentation, in particular its warning notices and safety instructions. Qualified personnel are those who, based on their training and experience, are capable of identifying risks and avoiding potential hazards when working with these products/systems. Proper use of Siemens products Note the following: WARNING Siemens products may only be used for the applications described in the catalog and in the relevant technical documentation. If products and components from other manufacturers are used, these must be recommended or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and maintenance are required to ensure that the products operate safely and without any problems. The permissible ambient conditions must be complied with. The information in the relevant documentation must be observed. Trademarks All names identified by (R) are registered trademarks of Siemens AG. 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Technical data subject to change Table of contents 1 Introduction................................................................................................................................................ 5 2 Preparation ................................................................................................................................................ 7 3 Learning units .......................................................................................................................................... 11 4 3.1 1. Step: Wire the CPU..................................................................................................................11 3.2 2. Step: Installing the sample project...........................................................................................14 3.3 3. Step: Parameter assignment ...................................................................................................15 3.4 4. Step: Linking blocks to the user program ................................................................................17 3.5 5. Step: Trial run ..........................................................................................................................18 Further Information .................................................................................................................................. 21 First Steps in Commissioning CPU 31xC: Positioning with analog output Getting Started, 08/2011, A5E00105537-03 3 Table of contents First Steps in Commissioning CPU 31xC: Positioning with analog output 4 Getting Started, 08/2011, A5E00105537-03 Introduction 1 Contents of this Getting Started Manual Based on a concrete example, this Getting Started manual takes you through five commissioning steps to the point where you have a functioning traversing movement. You will get to know certain basic hardware and software functions and will calculate and check the application-dependent parameters in this sample. This process will take one to two hours, depending on your experience. First Steps in Commissioning CPU 31xC: Positioning with analog output Getting Started, 08/2011, A5E00105537-03 5 Introduction First Steps in Commissioning CPU 31xC: Positioning with analog output 6 Getting Started, 08/2011, A5E00105537-03 2 Preparation Scope These instructions apply to the following CPUs: CPU SIMATIC Micro Memory Card required for operation? As of firmware version 314C-2 DP yes V3.3 314C-2 PtP yes V3.3 314C-2 PN/DP yes V3.3 The order number can be found in the manuals, e.g. the operating instructions CPU 31xC and CPU 31x: Installation (http://support.automation.siemens.com/WW/view/en/13008499). First Steps in Commissioning CPU 31xC: Positioning with analog output Getting Started, 08/2011, A5E00105537-03 7 Preparation Requirements The following requirements must be met: You have an S7 300 station consisting of a power supply module and a CPU 314C-2 DP, 314C-2 PtP or 314C-2 PN/DP. STEP 7 is correctly installed on your PG. The table below shows the STEP 7 version you need for each CPU. CPU STEP 7 version 314C-2 PtP STEP 7 as of V5.5 + SP1 or STEP 7 as of V5.3 + SP2 with HSP 204 314C-2 DP STEP 7 as of V5.5 + SP1 or STEP 7 as of V5.3 + SP2 with HSP 203 314C-2 PN/DP STEP 7 as of V5.5 with HSP 191 You have downloaded the sample projects from the Internet or have the CD of sample projects included with the Technological Functions operating instructions. You have set up a project for the S7-300 station. The PG is connected to the CPU. You have an external 24 V DC power supply, an encoder, a drive, and the necessary accessories, such as a front connector and wiring material. You provided hardware limit switches and EMERGENCY-OFF switches for safe and reliable operation of the system. The CPU is correctly connected to a power supply. WARNING Operation of an S7-300 as part of plants or systems is subject to special rules and regulations, which depend on its field of application. Please make sure that you adhere to the applicable safety and accident prevention regulations, for example IEC 204 (emergency stop systems). You risk severe injury, or damage to machines and equipment if you ignore these regulations. First Steps in Commissioning CPU 31xC: Positioning with analog output 8 Getting Started, 08/2011, A5E00105537-03 Preparation Layout of the example 1 7 2 6 3 5 4 For setting the line voltage Mode selector Mounting rail Programming device with STEP 7 software PG cable Connecting cable Clamp for strain relief Figure 2-1 Overview of sample layout First Steps in Commissioning CPU 31xC: Positioning with analog output Getting Started, 08/2011, A5E00105537-03 9 Preparation First Steps in Commissioning CPU 31xC: Positioning with analog output 10 Getting Started, 08/2011, A5E00105537-03 3 Learning units 3.1 1. Step: Wire the CPU WARNING Make sure that the PS 307 power supply module and the S7 300 are completely disconnected before you start wiring. You may come into contact with live wires if the PS 307 power supply module and S7 300 are connected to the power supply. Procedure 1. Connect the wired front connectors to the CPU. 2. Fasten the front connector. 3. Connect the power supply of the inputs and outputs: - 24 V to X2, pins 1 and 21 - Ground to X2, pins 20 and 30 4. Connect the incremental encoder to the 24 V power supply. 5. Connect the encoder signals (X2, pins 2 to 4). ; ; ,QFUHPHQWDOHQFRGHUV 6LJQDO$ 6LJQDO% 6LJQDO1 9 0 / 0 6. Connect the power unit to the power supply. First Steps in Commissioning CPU 31xC: Positioning with analog output Getting Started, 08/2011, A5E00105537-03 11 Learning units 3.1 1. Step: Wire the CPU 7. Connect the signal lines of the power unit over shielded cables (X1, pin 16 or 17 and pin 20 and X2, pins 28 and 30). ; 3RZHUXQLW &219B(1 ) 0 ) / / / *URXQG 3RZHUVLJQDO 0DQDORJ ; 8. Strip the insulation from the shielded cables. 9. Clamp the cable shield into the shield connection element. using the shield terminal elements. First Steps in Commissioning CPU 31xC: Positioning with analog output 12 Getting Started, 08/2011, A5E00105537-03 Learning units 3.1 1. Step: Wire the CPU Connector pin assignment The pin assignments described below relate only to the connectors relevant for the positioning type. Table 3- 1 CONNECTOR X1 Pin Name/address Function 16 AO 0 (V) Voltage output, power unit 17 AO 0 (A) Current output, power unit 20 Mana Analog ground Table 3- 2 CONNECTOR X2 Pin Name/address Function 1 1 L+ 24 V power supply of the inputs 2 DI + 0.0 Encoder signal A 3 DI + 0.1 Encoder signal B 4 DI + 0.2 Encoder signal N 5 DI + 0.3 Length measurement 6 DI + 0.4 Reference point switch 20 1M Ground 21 2 L+ 24 V power supply of the outputs 28 DO + 0.6 CONV_EN: Power unit enable 30 2M Ground Reference You will find information on the remaining connections in the documentation of the S7-300. First Steps in Commissioning CPU 31xC: Positioning with analog output Getting Started, 08/2011, A5E00105537-03 13 Learning units 3.2 2. Step: Installing the sample project 3.2 2. Step: Installing the sample project Introduction When installing the sample project, you have the following options: Installing from CD 1. Take the CD out of the Technological Functions operating instructions. 2. Start the installation program on the CD by double-clicking on the SETUP.EXE file in the SETUP folder. The installation program is started. 3. Now follow the instructions in the installation program. Installing from the Internet 1. Open the directory with the sample projects. 2. Start the installation program by double-clicking the SETUP.EXE file. The installation program is started. 3. Now follow the instructions in the installation program. First Steps in Commissioning CPU 31xC: Positioning with analog output 14 Getting Started, 08/2011, A5E00105537-03 Learning units 3.3 3. Step: Parameter assignment 3.3 3. Step: Parameter assignment Procedure 1. Open your project in SIMATIC Manager. A window, divided into two sections, opens showing the title of your project. 2. In your project, call the configuration table HW Config. 3. Double-click on the submodule "AI5/AO2". The "Properties AI5/AO2" dialog opens. 4. Disable analog output 0 by left-clicking the "Output mode" field of the "Output " tab and select "Disabled". Close the dialog with "OK". Analog output 0 is enabled for controlling the motor power unit. 5. Double-click on the submodule "Positioning". The "Positioning properties" dialog opens. 6. Select "Positioning with analog output". On the drive, axis and encoder tabs, customize the properties according to your system. First Steps in Commissioning CPU 31xC: Positioning with analog output Getting Started, 08/2011, A5E00105537-03 15 Learning units 3.3 3. Step: Parameter assignment 7. Confirm your settings with "OK". The "Positioning properties" dialog closes. Note The input and output address of the submodules "DI24/DO16", "AI5/02", "Counting" and "Positioning" must be adapted for the example to function correctly. Double-click the relevant line to adapt the submodule. A dialog opens. Select the "Addresses" tab in each case. Deselect the "System default" checkboxes. Change the addresses as follows: * DI24/DO16: Inputs: 124..126, Outputs: 124..125 * AI5/AO2: Inputs: 752..761, Outputs: 752..755 * Counting: Inputs: 768..783, Outputs: 768..783 * Positioning: Inputs: 784..799, Outputs: 784..799 Confirm your settings with "OK". 8. Save your configuration to your project with "Station > Save and compile". Your changes are now stored in your project. 9. When the CPU is in STOP, select "PLC > Download to module ..." to download the configuration. The data are now downloaded from the PG to the CPU. 10.Close HW Config with "Station > Close". You have returned to SIMATIC Manager. First Steps in Commissioning CPU 31xC: Positioning with analog output 16 Getting Started, 08/2011, A5E00105537-03 Learning units 3.4 4. Step: Linking blocks to the user program 3.4 4. Step: Linking blocks to the user program Procedure 1. Open the project "ZDt26_03_TF_____31xC_Pos" in the catalog ... \Siemens\STEP7\Examples via "File > Open ... > Sample projects" in SIMATIC Manager. A window, divided into two sections, opens showing the title of the project. 2. Double-click on the S7 program "Analog 1 First Steps". The "Sources", "Blocks" and "Symbols" folders are displayed in the right-hand window. 3. Double-click on the "Blocks" container. All blocks of the S7 program are displayed. 4. Copy all blocks from this folder to your project under "SIMATIC 300 Station > CPU 3xx > S7 Program > Blocks". Chip Name (in the toolbar) Description OB 1 CYCLE_EXC Cyclic program OB 100* COMPLETE RESTART Complete restart: Reset the control signals FC 1 GETST_A Example 1: ANALOG, first steps SFB 44 ANALOG SFB ANALOG DB 6 DI_ANALOG Instance DB for ANALOG VAT_GETST_A VAT_GETST_A Variable table * Note: Adjust the values for the speed, acceleration, deceleration, and switchover and shutdown difference in the block COMPLETE RESTART (OB 100). 5. In SIMATIC Manager, select "SIMATIC 300 Station > CPU 3xx > S7 Program > Blocks". All blocks of the S7 program are displayed. 6. Download all of the S7 blocks it contains via "PLC > Download to your CPU" (CPU in STOP mode). The program and configuration are downloaded from the PG to the CPU. First Steps in Commissioning CPU 31xC: Positioning with analog output Getting Started, 08/2011, A5E00105537-03 17 Learning units 3.5 5. Step: Trial run 3.5 5. Step: Trial run Procedure 1. In the "Function blocks" directory, double-click on the variable table "VAT_GETST_A" in your project. The variable table for monitoring and modifying is displayed. 2. Go online with "PLC > Connect to > Configured CPU". At the bottom right, you will see that the CPU is set to "STOP" mode. 3. Activate monitoring with "Variable > Monitor". The current values of the addresses are displayed in the "Status Value" column. CAUTION The next two test steps start the drive. You can stop the drive in one of the following ways: * Set the control value for the direction to 0 again and activate it * Set the control value for the drive enable to 0 again and activate it * Change the CPU to STOP 4. Switch the CPU to RUN. At the bottom right, you will see that the CPU is set to "RUN" mode. 5. Try out the two following experiments. With "Variable > Activate Modify Values", you can make the control values valid. "Jogging" mode Make the following settings: You can monitor the following signal statuses in the column "Status Value": MODE_IN = 1: Select "Jogging" mode ST_ENBL = 1: Start enable DRV_EN = 1: drive enable MOD_OUT = 1: Current mode "Jogging" SPEED: Speed in pulses/s WORKING = 1: Travel active Starting the drive: DIR_P = 1: Jogging in plus direction DIR_M = 1: Jogging in minus direction ACT_POS: Current actual position Remark: If both variables DIR_P and DIR_M are activated, no positioning is possible. First Steps in Commissioning CPU 31xC: Positioning with analog output 18 Getting Started, 08/2011, A5E00105537-03 Learning units 3.5 5. Step: Trial run "Incremental approach, relative" mode Make the following settings: You can monitor the following signal statuses in the column "Status Value": MODE_IN = 4: Select "Incremental approach, relative" mode ST_ENBL = 1: Start enable DRV_EN = 1: drive enable MOD_OUT = 4: Current mode "Incremental approach, relative" TARGET: Distance in pulses WORKING = 1: Travel active SPEED: Speed in pulses/s ACT_POS: Current actual position Start drive: DIR_P = 1: Incremental approach, relative in plus direction DIR_M = 1: Incremental approach, relative in minus direction POS_RCD = 1: Position reached First Steps in Commissioning CPU 31xC: Positioning with analog output Getting Started, 08/2011, A5E00105537-03 19 Learning units 3.5 5. Step: Trial run First Steps in Commissioning CPU 31xC: Positioning with analog output 20 Getting Started, 08/2011, A5E00105537-03 Further Information 4 Diagnostics/Correction of Errors Incorrect operator input, faulty wiring or inconsistent configuration data may lead to errors. For information on how to analyze such errors and messages, refer to the S7-300 documentation. Example: The "ZEn26_03_TF_____31xC_Pos" project contains further samples you can use for orientation. You can customize all samples according to your personal applications. First Steps in Commissioning CPU 31xC: Positioning with analog output Getting Started, 08/2011, A5E00105537-03 21 Further Information First Steps in Commissioning CPU 31xC: Positioning with analog output 22 Getting Started, 08/2011, A5E00105537-03