Siemens LOGO! 8

LOGO! 8 Hello World!
LOGO! 8 – the new LOGO! generation
LOGO! has long been known as an intelligent logic module for the implementation of switching and control solutions in small-scale automation projects –thanks to easy mounting, minimal wiring requirements,  convenient programming, and last but not least its small size. Using LOGO! Soft Comfort provides for numerous solutions which can easily be implemented 
in simple machines or systems, in building automation, or in a wide variety of applications in many sectors. 
With LOGO! 8, the successful Siemens logic module has launched the next generation. This new module accommodates virtually every demand of customers with simplified handling, a new display, and full communication options via Ethernet. And the web server application makes everything very simple. A communications module provides for remote communications via cellular phone network, rounding out the range of new ways to use LOGO!
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The new generation of logic modules

LOGO!8 New Generation


  • 8 basic units for all voltages, with or without display

  • All units come with an Ethernet interface, narrow like LOGO! 6 (4TE);
    and connections are compatible with previous versions

  • Integrated web server in all basic units

  • Display features a new look and feel

  • Seven digital modules and three analog modules

  • Digital outputs increased to 20 and analog outputs to 8

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Display with a new look and feel

LOGO!8 Display


  • A new 6-line display with 16 characters per line means twice as many characters per message, making it possible to clearly formulate message texts

  • Display with clear operator information and fewer abbreviations for message texts as well as status information that is easier to read, easily understood menu options for operations, and more sophisticated diagnostic options via the display

  • Selectable white, orange, and red backlighting for many new options, such as the ability to optically emphasize alarm and alert status

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Ethernet for all – the new standard with LOGO! 8

LOGO! 8 Ethernet


  • Integrated Ethernet interface for the entire LOGO! 8 product family. This makes it possible for LOGO! modules to communicate with each other and with all SIMATIC S7 systems via Ethernet

  • The Ethernet interface eliminates the need for additional cables for programming or for TDE; only the standard Ethernet cable is required

  • With the LOGO! CSM add-on module as an Ethernet 4-port switch expanding the Ethernet interfaces, cost-effective small local Ethernet networks can be implemented

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Integrated web server – it couldn’t be easier

LOGO! 8 Webserver


  • Integrated web server in all basic units for monitoring and control with LOGO!
    via WLAN and the Internet; passwordprotected and suitable for all conventional browsers

  • The web server is easy to configure via mouse click in the software;
    no HTML programming knowledge required

  • Users can freely select the desired display options to match the LOGO! display or the TDE display. Check a box for the web server – done!
    LOGO! 8 can be operated via smartphone, tablet, or PC with the same look and feel as the LOGO! 8 or TDE display; LOGO! 8 router connection required

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Remote communications via cellular phone network

LOGO! 8 Remote


  • And completely new – text message communications for alerts and remote control via cell phone using the LOGO! CMR module

  • Text messaging for active automatic alerts regarding system status

  • Position recognition and tracking via GPS, e.g. for costeffective container tracking and position reporting via text message to a central office

  • CMR2020 can exchange data with LOGO! 8, send text messages independently, and read control commands from text messages, introduce them to LOGO! 8,
    and even synchronize to local time worldwide

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New text display



  • The new LOGO! TDE with two Ethernet interfaces

  • Same mounting dimensions as before

  • Improved display with 6 lines and 20 characters per line now has more than twice as many characters as before for messages in plain text

  • As in the LOGO! display, the new TDE offers selectable white, orange, and red backlighting for optical emphasis, etc.

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New software in a new design

LOGO! Software


  • Familiar, easy operation in single mode and – brand new – incredibly simple configuration in network mode

  • Intuitive program creation and configuration of the many features, quick and easy connection with a mouse click

  • Automatic configuration of communication and display in the network view

  • Up to three programs can be displayed side-by-side; drag and drop can be used
    to easily drag signals from one program to another

  • Smooth and easy migration of programs from previous versions