Siemens CPU 31 Series User Manual

SIMATIC S7-300 CPU 31xC and CPU 31x, Technical Data
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Preface
Guide to the S7-300
documentation
1
Operating and display
elements
2
Communication
3
Memory concept
4
Cycle and reaction times
5
Technical data of CPU 31xC
6
Technical data of CPU 31x
7
Appendix
A
SIMATIC
S7-300
CPU 31xC and CPU 31x, Technical
Data
Manual
01/2006 Edition
A5E00105475-06
This manual is included in the documentation package
with Order No.: 6ES7398-8FA10-8BA0
The following supplement is part of this documentation:
No. Designation
Drawing number
Edition
1 Product Information A5E00688649-02 03/2006
2 Product Information A5E00830174-01 07/2006

Siemens CPU 31 Series Specifications

General

Series	SIMATIC S7-300
Supply voltage	24 V DC
Digital inputs	Varies by model (e.g., 8, 16, 32)
Digital outputs	Varies by model (e.g., 8, 16, 32)
Analog inputs	Varies by model (e.g., 4, 8)
Analog outputs	Varies by model (e.g., 2, 4)
Communication interfaces	MPI, PROFIBUS DP
Program memory	Varies depending on the specific CPU model (e.g., 64 KB, 128 KB, 256 KB, 512 KB)
Data memory	Varies depending on the specific CPU model (e.g., 48 KB, 64 KB, 96 KB, 128 KB)
Operating Temperature	0°C to 60°C
Programming Languages	LAD, FBD, STL, SCL, Graph

Summary

Preface

Purpose of the Manual

Outlines the manual's content on CPU configuration, communication, memory, and data.

Operating and Display Elements

CPU 31xC: Elements and Indicators

CPU 31xC Specific Elements

CPU 31xC Differences and Status/Error Indicators

Compares 31xC CPUs and lists status/error LEDs for CPU 31xC.

CPU 31x: Elements and Indicators

CPU 312, 314, 315-2 DP: Specific Elements

CPU 317-2 DP: Specific Elements

Details on MMC slot, interfaces, power, and mode switch for CPU 317-2 DP.

CPU 31x-2 PN/DP: Specific Elements

Details on MMC slot, interfaces, power, and mode switch for 31x-2 PN/DP.

CPU 319-3 PN/DP: Specific Elements

Details on MMC slot, interfaces, power, and mode switch for CPU 319-3 PN/DP.

Status and Error Displays for CPU 31x

General Status and Error Displays

Communication

Interface Overview

Multi-Point Interface (MPI)

PROFIBUS DP Interface

Details on PROFIBUS DP availability, modes, and capable devices.

PROFINET (PN) Interface

Details on PROFINET availability, connection, and capable devices.

PG, OP, and S7 Basic Communication

Details PG/OP communication, S7 basic communication, and S7 communication types.

Global Data, Routing, and PROFINET Communication

Details global data communication, routing properties, and PROFINET communication.

PROFINET IO System Functions

Details extended functions and system status lists for PROFINET IO.

Open Communication via Industrial Ethernet

Covers requirements, functionality, and features of open IE communication.

S7 Connection Resources Distribution and Availability

Details distribution and availability of S7 connection resources.

Memory Concept

Memory Areas and Retentivity

CPU Memory Areas: Load, System, and RAM

Retentivity of Memory Objects and DBs

Details retentive behavior of memory objects, DBs, and system memory across states.

Address Areas of System Memory

Explains system memory organization into address areas like process images and local data.

SIMATIC Micro Memory Card Properties

Details the properties, usage, and copy protection of the MMC.

Loading User Program from MMC to CPU

Handling Modules: Download/Upload

CPU Memory Reset and Restart

Backup Project Data to MMC

Cycle and Reaction Times

Calculating Cycle Time

Factors Extending Cycle Time

Shortest Response Time

Explains conditions and calculation for the shortest response time.

Longest Response Time

Explains conditions and calculation for the longest response time.

Reducing Response Time with Direct I/O Access

Calculating Cycle and Response Time

Response Time Calculation Method

Interrupt Response Time Overview

Process/Diagnostic Interrupt Response Times

Calculating Interrupt Response Time

Sample Calculations

Example: Response Time Calculation

Example: Interrupt Response Time Calculation

Technical Data of CPU 31xC

CPU 312C Technical Data

Provides detailed technical specifications for the CPU 312C.

CPU 313C Technical Data

Provides detailed technical specifications for the CPU 313C.

CPU 313C-2 PtP and CPU 313C-2 DP Technical Data

Provides technical data for CPU 313C-2 PtP and CPU 313C-2 DP.

CPU 314C-2 PtP and CPU 314C-2 DP Technical Data

Provides technical data for CPU 314C-2 PtP and CPU 314C-2 DP.

Integrated I/O Technical Data

Analog I/O Wiring and Principles

Analog Input Filters and Parameters

Parameterization of Standard Digital Inputs/Outputs

Parameters of Standard Analog Inputs (AI)

Parameters of Standard Analog Outputs (AO)

Digital Input Specifications

Digital Output Specifications

Analog Input Specifications

Analog Output Specifications

Technical Data of CPU 31x

SIMATIC Micro Memory Card Specifications

CPU 312 Technical Data

Provides detailed technical specifications for the CPU 312.

CPU 314 Technical Data

Provides detailed technical specifications for the CPU 314.

CPU 315-2 DP Technical Data

Provides detailed technical specifications for the CPU 315-2 DP.

CPU 315-2 PN/DP Technical Data

Provides detailed technical specifications for the CPU 315-2 PN/DP.

CPU 317-2 DP Technical Data

Provides detailed technical specifications for the CPU 317-2 DP.

CPU 317-2 PN/DP Technical Data

Provides detailed technical specifications for the CPU 317-2 PN/DP.

CPU 319-3 PN/DP Technical Data

Provides detailed technical specifications for the CPU 319-3 PN/DP.

Product Information on CPU319-3 PN/DP

Industrial Ethernet Communication and Downloads

Cyclic Transmission and SINAMICS S120 Usage

New CPUs with Larger Working Memory

Key Features of New CPUs

Non-retentive Data Blocks