First Steps in Commissioning CPU. 31xC: Positioning with digital output SIMATIC

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1 First Steps in Commissioning CPU 31xC: Positioning with digital output Introduction 1 Preparation 2 SIMATIC S7-300 First Steps in Commissioning CPU 31xC: Positioning with digital output Learning units 3 Further Information 4 Getting Started 08/2011 A5E

2 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 are registered trademarks of Siemens AG. The remaining trademarks in this publication may be trademarks whose use by third parties for their own purposes could violate the rights of the owner. Disclaimer of Liability We have reviewed the contents of this publication to ensure consistency with the hardware and software described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the information in this publication is reviewed regularly and any necessary corrections are included in subsequent editions. Siemens AG Industry Sector Postfach NÜRNBERG GERMANY A5E P 09/2011 Copyright Siemens AG Technical data subject to change

3 Table of contents 1 Introduction Preparation Learning units Step: Wire the CPU Step: Installing the sample project Step: Setting parameters Step: Linking blocks to the user program Step: Carrying out a dry run Further Information Getting Started, 08/2011, A5E

4 Table of contents 4 Getting Started, 08/2011, A5E

5 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. Getting Started, 08/2011, A5E

6 Introduction 6 Getting Started, 08/2011, A5E

7 Preparation 2 Scope These instructions apply to the following CPUs: CPU SIMATIC Micro Memory Card required for operation? 314C-2 DP yes V C-2 PtP yes V C-2 PN/DP yes V3.3 As of firmware version The order number can be found in the manuals, e.g. the operating instructions CPU 31xC and CPU 31x: Installation ( Getting Started, 08/2011, A5E

8 Preparation Requirements You have an S7 300 station consisting of a power supply module and a CPU 314C-2 PtP, 314C-2 DP 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 C-2 DP STEP 7 as of V5.5 + SP1 or STEP 7 as of V5.3 + SP2 with HSP C-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. 8 Getting Started, 08/2011, A5E

Preparation Layout of the example 1 2 3 1 2 3 4 5 6 7 7 6 5 4 Setting of supply voltage Mode selector Mounting rail Programming device with

9 Preparation Layout of the example Setting of supply 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 Getting Started, 08/2011, A5E

10 Preparation 10 Getting Started, 08/2011, A5E

11 Learning units Step: Wire the CPU WARNING You can come into contact with live wires if the PS 307 power supply module is turned on or the PS power supply cable is connected to the main power supply. Ensure the S7-300 is completely disconnected before wiring! Procedure 1. Connect the wired front connector to the CPU. 2. Fasten the connector. 3. Connect the power supply for the digital inputs and digital outputs: 24 V to X2, pins 1 and 31 Ground to X2, pins 20 and Connect the incremental encoder to the 24 V power supply. 5. Connect the encoder signals (X2, pins 2 to 4). 6. Connect the relay circuit to the power supply. Getting Started, 08/2011, A5E

12 Learning units Step: Wire the CPU 7. Connect the wires of the relay circuit (X2, pin 32 to 35 and pin 40). 8. Strip the insulation from the shielded cables. 9. Clamp the cable shield into the shield connection element. using the shield terminal elements. 12 Getting Started, 08/2011, A5E

13 Learning units Step: Wire the CPU Connector pin assignment The pin assignments described below relate only to the connections relevant for the positioning type. Table 3-1 CONNECTOR X2 Pin Name/address Function 1 1 L+ 24 V power supply of the inputs 2 DI Encoder signal A 3 DI Encoder signal B 4 DI Encoder signal N 5 DI Length measurement 6 DI Reference point switch 20 1 M Ground 31 3 L+ 24 V power supply of the outputs 32 DO Digital output Q0 33 DO Digital output Q1 34 DO Digital output Q2 35 DO Digital output Q M Ground Reference You will find information on the remaining connections in the documentation of the S Getting Started, 08/2011, A5E

14 Learning units Step: Installing the sample project 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. 14 Getting Started, 08/2011, A5E

Learning units 3.3 3. Step: Setting parameters 3.3 3. Step: Setting parameters Procedure 1. Open your project in SIMATIC Manager.

15 Learning units Step: Setting parameters Step: Setting parameters 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 "Positioning". The "Positioning properties" dialog opens. 4. Select "Positioning with digital outputs". 5. On the drive, axis and encoder tabs, customize the settings according to your system. 6. 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: , Outputs: AI5/AO2: Inputs: , Outputs: Counting: Inputs: , Outputs: Positioning: Inputs: , Outputs: Confirm your settings with "OK". 7. Save your configuration to your project with "Station > Save and compile". Your changes are now stored in your project. Getting Started, 08/2011, A5E

16 Learning units Step: Linking blocks to the user program 8. 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. 9. Close HW Config with "Station > Close". You are returned to SIMATIC Manager 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 "Digital 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". Block 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 Getting Started DIGITAL SFB 46 DIGITAL System function block POS DIGITAL DB 6 DI_DIGITAL Instance DB for the SFB DIGITAL VAT_GETST_A VAT_GETST_A Variable table * Adjust the values for the 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. 16 Getting Started, 08/2011, A5E

17 Learning units Step: Carrying out a dry run Step: Carrying out a dry run Procedure 1. In the "Blocks" directory, double-click on the variable table "VAT_GETST_d" 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: MODE_IN = 1: Select "Jogging" mode DRV_EN = 1: drive enable SPEED: Speed: 0 = Creep speed, 1 = Rapid traverse Starting the drive: DIR_P = 1: Jogging in plus direction DIR_M = 1: Jogging in minus direction Note: If both variables DIR_P and DIR_M are activated, no positioning is possible. You can monitor the following signal statuses in the column "Status Value": ST_ENBL = 1: Start enable MOD_OUT = 1: Current mode "Jogging" WORKING = 1: Travel active ACT_POS: Current actual position Getting Started, 08/2011, A5E

18 Learning units Step: Carrying out a dry run "Incremental approach, relative" mode Make the following settings: MODE_IN = 4: Select "Incremental approach, relative" mode DRV_EN = 1: drive enable TARGET: Distance in pulses SPEED: Speed: 0 = Creep speed, 1 = Rapid traverse Start drive: DIR_P = 1: Incremental approach, relative in plus direction DIR_M = 1: Incremental approach, relative in minus direction You can monitor the following signal statuses in the column "Status Value": ST_ENBL = 1: Start enable MOD_OUT = 4: Current mode "Incremental approach, relative" WORKING = 1: Travel active ACT_POS: Current actual position POS_RCD = 1: Position reached 18 Getting Started, 08/2011, A5E

19 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. Getting Started, 08/2011, A5E

20 Further Information 20 Getting Started, 08/2011, A5E

S7-300 Getting Started - Commissioning a CPU 31xC: Closed-loop control

Getting Started - Commissioning a CPU Introduction 1 31xC: Closed-loop control Preparation 2 SIMATIC S7-300 Getting Started - Commissioning a CPU 31xC: Closed-loop control Learning units 3 Further Information