S7-300硬件安装

Title Contents 1 Preface 2 Guide to the S7-300 documentation 3 Installation Order 4 S7-300 modules 5 Configuring 5.1 Summary of the Content 5.2 Basic Principles of Planning 5.3 Component dimensions 5.4 Arranging modules on a single rack 5.5 Arranging modules on multiple racks 5.6 Selection and installation of cabinets 5.7 Example: Selecting a cabinet 5.8 Electrical assembly, protective measures and grounding 5.8.1 Grounding concept and overall structure 5.8.2 Installing an S7-300 with grounded reference potential 5.8.3 Installing an S7-300 with ungrounded reference potential (not CPU 312 IFM or CPU 31xC) 5.8.4 Isolated or non-isolated modules? 5.8.5 Grounding 5.8.6 Overview: Grounding 5.9 Selecting the load power supply unit 5.10 Planning subnets 5.10.1 Extending and networking subnets 5.10.2 Basic Principles of MPI, DP and PtP Subnets 5.10.3 Interfaces 5.10.4 Network components 5.10.5 Cable length 5.10.6 Sample networks 6 Installation 6.1 Installing an S7-300 6.2 Installing the rail 6.3 Installing modules on the rail 6.4 Label the modules 7 Wiring 7.1 Wiring 7.2 connecting the protective conductor to the rail 7.3 Adjusting the power supply module to mains voltage 7.4 Wiring the power supply module and the CPU 7.5 Wiring front connectors 7.6 Inserting front connectors into modules 7.7 Labeling the module I/Os 7.8 Connecting shielded cables to the shielding contact element 7.9 Wiring the bus connector 8 Addressing 8.1 Addressing 8.2 Slot-defined addressing of modules 8.3 Introduction 8.4 User-defined addressing of modules 8.5 Addressing signal modules 8.6 Addressing the integrated I/O of the CPU 8.7 Consistent data 9 Commissioning 9.1 In this Chapter 9.2 Commissioning procedure 9.3 The commissioning checklist 9.4 Insert the back-up battery or rechargeable battery 9.5 Inserting or replacing a Memory Card or Micro Memory Card 9.6 Commissioning the modules 9.6.1 Connecting the PG 9.6.2 Initial power on. 9.6.3 Resetting CPU memory 9.6.4 Starting SIMATIC Manager 9.6.5 Monitoring and controlling I/Os 9.7 Commissioning PROFIBUS DP 9.7.1 Commissioning the CPU as DP master 9.7.2 Commissioning the CPU as DP slave 9.7.3 Direct data exchange 10 Maintenance 10.1 In this Chapter 10.2 Operating System back-up 10.3 Updating the Operating System 10.4 Module replacement 10.5 Replacing the back-up battery or rechargeable battery (CPUs with MC only) 10.6 Digital output module AC 120/230 V: Replacing the fuses 11 Testing functions, Diagnostics and Fault Elimination 11.1 In this Chapter 11.2 Overview: Testing functions 11.3 Overview: Diagnostics 11.4 Diagnostic options with STEP 7 11.5 Diagnostics with LEDs 11.6 Diagnostics of DP CPUs 11.6.1 Diagnostics of DP CPUs operating as DP master 11.6.1.1 Reading Slave Diagnostic Data 11.6.2 Interrupts on the DP master 11.6.2.1 Structure of the slave diagnostic data when the CPU is used as an intelligent slave 12 Appendix 12.1 Assembly 12.1.1 General rules and regulations for S7-300 operation 12.2 Protection against electromagnetic interference 12.2.1 Basic points for system installations conforming with EMC requirements 12.2.2 Five basic rules for insuring EMC 12.2.3 EMC compatible installation of PLC 12.2.4 Examples of an EMC compatible installation 12.2.4.1 Shielding of cables 12.2.4.2 Equipotential bonding 12.2.4.3 Cable routing inside buildings 12.2.5 Outdoor cable routing 12.3 Lightning and surge voltage protection 12.3.1 In the following sections ... 12.3.1.1 Lightning protection zone concept 12.3.2 Rules for the transition point between lightning protection zones 1 12.3.3 Rules for the transition points between lightning protection zones 1 <-> 2 and higher 12.3.4 Sample of a surge protection circuit for networked S7-300 PLCs 12.3.5 1 How to protect digital output modules against inductive surge voltage 12.4 Safety of electronic control equipment 13 Glossary Index A B C D E F G H I K L M N O P R S T U V W