Preface; With Step - Siemens S7-1500 Function Manual

Preface

Purpose of the documentation
This documentation describes the various memory areas of the SIMATIC S7-1500
automation system, the SIMATIC S7-1500-based CPU 1516pro-2 and the ET 200SP
distributed I/O system and shows you how to optimally use these memory areas.
In addition, this manual shows you how to reduce work memory utilization by using recipes
and data logs.
Basic knowledge required
The following knowledge is required in order to understand the documentation:
● General knowledge of automation technology
● Knowledge of the SIMATIC industrial automation system
● Knowledge about the use of computers
● Proficiency with STEP 7
Conventions
STEP 7: in this documentation, "STEP 7" is used as a synonym for all versions of the
"STEP 7 (TIA Portal)" configuring and programming software.
Please also observe notes marked as follows:
Note
A note contains important information on the product described in the documentation, on the
handling of the product or on the section of the documentation to which particular attention
should be paid.
Scope of the documentation
This documentation is valid for the central modules of the S7-1500 and ET 200SP systems
and for the ET 200pro CPU 1516pro-2 PN.
The CPUs of the redundant system S7-1500R/H do not support all the memory objects
described in this function manual. The limitations of the redundant S7-1500R/H system are
pointed out where appropriate in the manual. You can find a list of the unsupported functions
in the Redundant System S7-1500R/H
(https://support.industry.siemens.com/cs/ww/en/view/109754833) system manual.
Structure and Use of the CPU Memory
Function Manual, 10/2018, A5E03461664-AC
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