Siemens SIMATIC S5 CP 523 Manual page 5

CP 523
Introduction
It is important to study the introduction carefully before reading the rest of the manual. This will
help you to use the manual and will save you time.
Description of Contents
This manual is a comprehensive description of the CP 523. The manual can be divided into blocks
according to topics.
• Description
- The "System Overview" contains information on the tasks the module can perform and on
how the module is used in the S5-115U, S5-135U, S5-150U, S5-155U and S5-115F.
- The "Technical Description" contains general information on the principle of operation of
the module, technical specifications, details of the serial interface and input/output (I/O)
modules and a list of accessories.
• Installation and operation
- The chapter on "Hardware Installation" tells you which programmable controllers and
expansion units the module can be used with, how it is assembled and how to connect it to
a printer or I/O module (connector pin assignments and terminal diagrams).
- "Notes on Operation" describes the restart characteristics and actual operation. This
chapter also contains the error messages that can occur during startup.
• Addressing
This chapter demonstrates how to address the module and describes the function of the
transfer memory.
• Functional description
We have devoted a separate chapter to the "Print mode" and the "Communications mode".
Each of these chapters contains the information necessary for programming the module for
the relevant mode. This saves you time-consuming searches in the manual.
• Appendix A: Summary
All the information you require to operate the CP 523 has been gathered together here in list
form. This has been designed for those users who have read the manual and wish to find some
brief item of information quickly.
EWA 4NEB 811 6044-02a
Introduction
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