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Entry type: Application example Entry ID: 20982954, Entry date: 09/13/2013
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CPU-CPU communication with SIMATIC controllers (compendium)

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  • Associated product(s)
Task Totally Integrated Automation (TIA) makes Siemens the only provider of a consistent product spectrum for automation. A main component of  TIA is the communication of SIMATIC controllers with each other and with third-party controllers (CPU-CPU communication). ...

Task
Totally Integrated Automation (TIA) makes Siemens the only provider of a consistent product spectrum for automation. A main component of  TIA is the communication of SIMATIC controllers with each other and with third-party controllers (CPU-CPU communication).

There are various options to realize a CPU-CPU communication. The solutions are distinguished by the selection of the network, the communication partners, the communication interface, the communication type and the user interface. To find the optimal solution for the respective communication task it is necessary to have an overview of the existing communication options. When searching for the optimal solution, the following question arises:

  • Who can communicate with whom, and how?

Solution
The document answers the above question concisely. It has the character of a compendium and is optimized via hyperlinks for quickly finding information. The extensive document is structured clearly and has the following content:

  • Basic information on CPU-CPU communication with SIMATIC controllers
  • Clear representation of all options for a CPU-CPU communication with SIMATIC controllers
  • Detailed information on all communication types and user interfaces
  • CPU-CPU communication via Modbus
  • Links to further information

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Documentation
CPU-CPU communication with SIMATIC controllers (compendium)
Entry-ID
78028908

Security Notice
Caution
The functions and solutions described in this article confine themselves to the realization of the automation task predominantly. Please take into account furthermore that corresponding protective measures have to be taken up in the context of Industrial Security when connecting your equipment to other parts of the plant, the enterprise network or the Internet. Further information can be found under the Entry-ID 50203404.

Last Changes
Update, Integration of S7-1500, S7-1200 SIMATIC PLCs an CMs/CPs
Transfer to SIMATIC Manual  Area of Industry Online Support

Additional Keywords
PROFINET, PN , Industrial Ethernet, IE, PN/IE, PROFIBUS, PB, MPI, serial interface, PtP, SIMATIC backplane bus, Modbus TCP, Modbus RTU,
ET 200 CPU, S7-300, S7-400, S7-1200, S7-mEC, Box PC, Panel PC, WinAC MP, WinAC RTX,
Global data, global data communication, S7 communication, S7 basic communication, open communication, CBA, PNIO, FMS communication, DP communication, ASCII, 3964(R), RK 512

Security information
In order to protect technical infrastructures, systems, machines and networks against cyber threats, it is necessary to implement – and continuously maintain – a holistic, state-of-the-art IT security concept. Siemens’ products and solutions constitute one element of such a concept. For more information about cyber security, please visit
https://www.siemens.com/cybersecurity#Ouraspiration.
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