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We check safety-related parts of your machine control with SISTEMA
SISTEMA is a manufacturer-independent calculation tool from the Institute for Occupational Safety and Health of the German Social Accident Insurance.


PL, PFH, MTTFd, DCavg & CC ... Our employees are TÜV-trained SISTEMA users.


We check the safety-related part of your machine control for you.

Know-how transfer

We look forward to sharing our knowledge with you.

ergo-safe evaluates security concepts with Sistema

SISTEMA software assistant

Machines are complex. Malfunctions can cause serious accidents. Machine builders are well advised to observe the requirements of the Machinery Directive. In particular, whenever software and electronic components take on safety tasks that are intended to protect the operating personnel of the machine from injury or even death.

In order to increase the reliability of controls, their software and the associated safety-related components, DIN EN ISO 13849 was created. DIN EN ISO 13849 is listed as a safety standard in the Official Journal of the EU and is therefore mandatory to comply with the Machinery Directive.

SISTEMA calculates the reliability of safety-related controls in accordance with the requirements of DIN EN ISO 13849. First, the “required performance level (PLr)” is determined. SISTEMA then checks all safety-related sub-areas of the control concept using circuit diagram information. SISTEMA reproduces the structure of these sub-areas and calculates the reliability values. At the end, SISTEMA outputs the performance level (PL) actually achieved as a report.


The ergo-safe team is very familiar with the risk parameters for determining the required performance level (PLr). Ergo-safe knows effective measures against "Common Cause Failures" (CCF) and knows how to determine the mean component quality (MTTFd) and the mean test quality (DCavg) of components. With SISTEMA you get one written confirmationthat the control concept of your machine - in terms of the Machinery Directive - is safe!


The performance of the ergo-safe team at a glance:

  • Set up your personal SISTEMA project
  • Check the safety-related sub-areas of your machine control in accordance with DIN EN ISO 13849 with SISTEMA
  • Output of a SISTEMA report as a PDF document
  • Handover of the completed SISTEMA project (XML file) for free use
  • Training of your employees to become a SISTEMA operator

+49 (0)771 16280480

Request potential analysis

The ergo-safe team offers you all services related to SISTEMA at a fixed price. In order to be able to make you an offer, we offer you a free potential analysis. For this we need a circuit diagram (e.g. as a PDF).

Call us, we will be happy to provide you with a secure connection to our server for the upload.


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