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Entry type: Application example, Entry ID: 21690134, Entry date: 08/16/2006

Micro Automation: Safety-integrated switching in the AS-interface network (MAS 7)

  • Entry
  • Associated product(s)

The SIMATIC S7-200 components used in this application example are currently phased out.
This application can be realized even more effective and easier with the new SIMATIC S7-1200.
The respective application example with SIMATIC S7-1200 is available under entry-ID: 58638283
Furthermore, many useful applications with SIMATIC S7-1200 are available under entry-ID: 35923253

Automation task
In an S7-200 automation station networked with AS-i, fail-safe components (e.g. emergency stop switch or positioning switch) are to be integrated. Expenses and costs of the automation solution should be as low as possible. Particular emphasis is placed on simple expendability of the station.

Automation solution
In the automation solution, the fail-safe components are directly integrated into the AS-i network. The AS-i Safety monitor enables cost-effective, fail-safe switching in the S7-200 station. This means that no extra wiring is required. The process data and fail-safe data both use the AS-i bus. The station can be expanded quickly and easily.

From a technical point of view, this Micro Automation Set 7 consists of two parts.
Standard automation tasks on field level, such as machine control, are solved in the standard part of the AS-i network The fail-safe stations (e.g. EMERGENCY STOP and safety monitor) communicate in the safe part, independent of the activities in the unsafe part (EMERGENCY STOP)

Startup Code
For the startup we offer you software examples with test code and test parameters as download. The software examples support you during the first steps and tests with your Micro Automation Sets. They enable quick testing of the hardware and software interfaces between the products described in the Micro Automation Sets.


Download contents


Flyer (English) 
Micro Application Example (English)
Set7_DocTech_v1d1_en.pdf ( 545 KB )
Startup Code (STEP 7-Micro/WIN Projekt) Set7_S7-200_V1d1_en.zip ( 5 KB )
Startup Code (AS-i Sicherheitsmonitor Projekt) Set7_SafetyMonitor_V1d1_en.zip ( 318 bytes )


Link contents


S7-200 system manual System manual
AS-Interface instructions and basics Instructions and basics

Excessive of the tread "Applications & Tools"

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