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SIMATIC
S7-300, CPU 31xC and CPU 31x:
Installation
Operating Instructions
This manual is part of the documentation package
with the order number: 6ES7398-8FA10-8BA0
Edition 08/2004
A5E00105492-05
Preface
Guide to the S7-300
documentation
Installation Order
S7-300 components
Configuring
Installing
Wiring
Addressing
Commissioning
Maintenance
Debugging functions, dia-
gnostics and troubleshooting
Appendix
1
2
3
4
5
6
7
8
9
10
A
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Table of Contents
Related Manuals for Siemens Simatic S7-300 CPU 315-2-PN/DP
Summarization of Contents
Preface
Purpose of the manual
Details the manual's content on configuring, installing, wiring, addressing, and commissioning S7-300.
System Approvals and Compliance
Lists product approvals, CE label, C tick mark, and standards compliance.
Documentation Context
Explains the manual's place within the S7-300 documentation package and lists required manuals.
Guide to the S7-300 Documentation
Documentation Overview
Provides a guide to understanding the S7-300 documentation structure and content.
Finding Information on Key Topics
Uses tables to direct users to specific manuals for selection, configuration, communication, and software.
Installation Order
Installation Procedure Overview
Presents a flowchart outlining the steps for installing an S7 system.
Basic Rules for Trouble-Free Operation
Provides essential rules for electrical and mechanical installation of the S7 system.
Modifying Existing S7 Systems
Describes how to modify the configuration of an existing S7 system.
S7-300 Components
Example S7-300 Configuration
Illustrates a typical S7-300 configuration with key components.
Overview of Vital Modules
Describes essential S7-300 modules like racks, PS, CPUs, SMs, FMs, CPs, and interfaces.
Configuring
Overview of Configuration Tasks
Outlines information for mechanical, electrical configuration, and networking.
Basic Engineering Principles
Covers important engineering principles, warnings, and module types.
Component Dimensions and Clearances
Details mounting rail lengths, module widths, shielding elements, and required clearances.
Module Arrangement and Distribution
Explains arranging modules on single/multiple racks and examples.
Cabinet Selection and Installation
Guides on selecting and dimensioning cabinets, power dissipation, and examples.
Electrical Assembly, Grounding, and Protection
Covers grounding concepts, VDE specifications, module potentials, and measures.
Load Power Supply Selection
Details features, requirements, and current determination for load power supplies.
Planning Subnets (MPI, PROFIBUS, PROFINET)
Covers subnets, network components, cable lengths, and examples for MPI, PROFIBUS, and PROFINET.
Installing
Installing an S7-300 System
Explains the steps for mechanical assembly of an S7-300 system.
Installation Accessories and Tools
Lists included accessories, required tools, and materials for installation.
Installing the Mounting Rail
Details mounting rail versions, preparation, dimensions, and installation.
Mounting Modules and Labeling
Covers module mounting order, installation steps, and slot number assignment.
Wiring
Wiring Requirements and Tools
Covers wiring requirements, accessories, tools, and conditions for PS, CPU, and front connectors.
Power Supply and CPU Wiring
Details bonding protective conductor, adjusting mains voltage, and wiring PS to CPU.
Front Connector and Cable Wiring
Explains wiring front connectors, preparation, steps, and plugging into modules.
Shielding and Bus Connector Wiring
Covers connecting shielded cables, shielding elements, and MPI/PROFIBUS bus connectors.
RJ45 Ethernet Connector
Describes the RJ45 Ethernet connector and its use.
Addressing
Slot-Specific Module Addressing
Explains slot numbering and default module start addresses for S7-300.
User-Specific Module Addressing
Covers user-specific addressing for digital and analog modules, including integrated I/Os.
Consistent Data Handling
Details aspects of communication for consistent data transfer in PROFIBUS DP and PROFINET IO.
Commissioning
Hardware Commissioning Procedure
Details hardware requirements and a step-by-step commissioning process.
Software Commissioning Requirements
Outlines software requirements for CPU functionality and commissioning steps.
Commissioning Check List
Provides a checklist for verifying installation and wiring steps.
Module Commissioning (MMC, Power On, Memory Reset)
Covers inserting/replacing MMC, initial power on, memory reset, and formatting.
Connecting Programming Devices (PG/PC)
Explains connecting PG/PC to PROFINET, MPI, and ungrounded nodes.
SIMATIC Manager and I/O Monitoring
Guides on starting SIMATIC Manager, monitoring/modifying I/Os, and modifying outputs.
PROFIBUS DP Commissioning
Details commissioning PROFIBUS DP as master, slave, and direct data exchange.
PROFINET IO Commissioning
Covers requirements, configuration, and startup for PROFINET IO systems.
Maintenance
Firmware Backup and Update
Covers backing up firmware to MMC and online updates of CPU firmware.
Project Data Backup
Explains saving project data to a Micro Memory Card (MMC).
Module Installation/Removal and Fuse Replacement
Details rules for module installation/removal and changing fuses in output modules.
Debugging, Diagnostics, and Troubleshooting
Debugging Functions Overview
Introduces debugging tools like node flashing, variable monitoring, stepping, and forcing.
General Diagnostics Overview
Explains error types, LED displays for CPU status, and Ethernet interface indicators.
Diagnostic Buffer and System Functions
Covers using diagnostic buffer, SFB/SFC functions, and hardware diagnostics in STEP 7.
Network Infrastructure Diagnostics (SNMP)
Explains the use of SNMP for diagnosing Ethernet network infrastructure.
Diagnosing Status and Error LEDs
Details LED status displays for CPUs, DP interfaces, and PROFINET interfaces.
DP CPU Diagnostics
Covers diagnostics for DP CPUs as master/slave, direct data exchange, and event detection.
Appendix
General Rules for S7-300 Operation
Covers system startup after events, mains voltage, and 24 VDC power supply.
Protection Against Electromagnetic Interference (EMC)
Details EMC definition, coupling mechanisms, cable routing, shielding, equipotential bonding, and examples.
Lightning and Surge Voltage Protection
Explains lightning protection zones, transition rules, surge protection components, and examples.
Digital Output Module Protection
Provides guidance on protecting digital output modules against inductive surge voltage.
Safety of Electronic Control Equipment
Discusses reliability, risks, safety measures, and fail-safe systems.
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