Preface - Siemens SIMATIC S7-1500 Manual

Preface

Purpose of the documentation
This product manual supplements the system manuals:
● S7-1500 Automation System
● ET 200MP Distributed I/O System
Functions that relate in general to the systems are described in these system manuals.
The information provided in this product manual and in the system/function manuals
supports you in commissioning the systems.
Changes compared to previous version
Compared to the previous version, this product manual includes detailed information on the
module functions, for example, as of which STEP 7 version the function is supported.
Conventions
The term "CPU" is used in this manual both for the CPUs of the S7-1500 automation system,
as well as for interface modules of the ET 200MP distributed I/O system.
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.
4
Digital input module DI 32x24VDC BA (6ES7521-1BL10-0AA0)
Manual, 09/2014, A5E32363711-AB