Siemens S5-135U/155U appendix System Manual

Notes on Using this Manual and on the CE Symbol

How the Manual is Given as a guide in the following are pointers on how this manual is

Organizedorganized; they will assist you when using your S5-135U/155U programmable controller.

SAt the start of this manual you will find the ªSafety-Related Guidelinesº and the ªESD Guidelines.º You must observe these to the letter and follow them during the entire time you are working with the

S5-135U/155U PLC. If your PLC requires repair, you must observe the Repair Guidelines in Section 4.1.4.

SChapter 3 contains the Installation Guidelines with information on interference-free installation of the S5-135U/155U PLC.

Which of the remaining chapters of this manual you may require when working with your PLC will depend on the extent of your automation task and on the configuration of your PLC.

For a basic configuration in single-processor operation without expansion units, you will need the following chapters:

SChapter 4 describes the central controller (CC) in Section 4.1. Described are the technical features, installation, startup and maintenance of the CC. Section 4.3 describes the power supply units. You will find a separate description of the 6ES5 955-3NA12 power supply unit in Section 4.5. Both sections describe the installation and startup as well as the necessary maintenance on the power supply units. The 24 V/4 A load power supply is described in Section 4.4.

SChapter 5 contains the instructions for the individual CPUs. Described here are the technical features, installation and startup of the individual CPUs. The various methods of operating the CPUs are also described, as are the CPU statuses where they can be directly indicated by the LEDs on the module. If you use memory submodules or memory cards (CPU 948), you can look up the necessary information in Sections 5.7 to 5.9.

SChapter 8 and Chapter 9 describe the digital and analog I/O modules. Described here are the installation, wiring and operation of these modules. Individual I/O modules exhibit specific features which are discussed in separate chapters.

To configure your PLC with expansion units (EUs) you will need the following chapters:

SChapter 2 shows how you can configure a PLC with expansion units in a centralized or distributed arrangement.

SDescribed in Chapter 4, Section 4.2, are the EU 183U, EU 184U, EU 185U and EU 187U. Those EUs which operate with their own power supply unit are described in Section 4.3.

SChapter 7 describes the interface modules (IMs) which serve for data communication between central controllers and expansion units.

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