Introduction - Siemens LOGO! 8 Manual

1 Introduction

Introduction
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This application example offers a ready-made circuit for LOGO! 8 for the control of
up to 20 different functions in a building via the function keys of the external LOGO!
text display.
The integrated functions of a LOGO! 8 offer many additional possibilities to solve
tasks in building management quickly and easily.
With LOGO!, prefabricated function blocks support project creation, e.g. weekly
time switch, pulse generator, astro timer, seasonal time switch, stopwatch and
simple logic gates.
The LOGO! text display (TDE) and the integrated web server of the LOGO! 8 offer
additional options for operation and monitoring using function keys and message
texts. This enables you to call up and control functions via the Internet; please refer
to the individual security requirements "Security Notes".
Task
The LOGO! TDE is designed to navigate easily through the switchable facilities
inside and outside a building. This central control system is intended to enable
connection to a network in order to switch functions on and off, e.g. via a
smartphone/tablet, as shown by
Figure 1-1: Central control with the LOGO! TDE in building automation
Advantages of LOGO! due to a conventional electrical installation
The simple integration of LOGO! 8 offers you the following benefits:

Extendibility of the software program to include further tasks (room lighting,
staircase lighting, safety and monitoring functions, etc.)

Straightforward, star-shaped wiring of the components

Use of simple switches (circuit breakers) or pushbuttons instead of complex
toggle or two-way switches

Integration of LOGO! inputs and outputs into a KNX system
Target group
This application example is intended for specialist staff for electronics engineering.
LOGO! 8 TDE Central control for individual switching of general consumers
Entry ID: 109755864, V1.0,
Figure 1-1
04/2018
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