Totally Integrated Automation

Totally Integrated Automation

  • Articles
    • Communications
    • Controllers
    • Diagnostics
    • Drives
    • Engineering
    • HMI
    • I/O
    • Industrial PC
    • Machine Vision
    • Motors
    • PLC
    • Power
    • Renewable Energy
    • Security
    • Software
  • Product Releases
  • Webinars
    • Safety Webinars
    • TIA – Webinar Archives
  • Automotive Focus
  • Fully Integrated Components
  • Products 360°
    • Siruis ACT Pushbutton
    • NEMA Pump Panel
    • SIRIUS 3SK1: Safety Relays
    • S2 Innovations Contactor
  • About
  • Newsletter Subscription
  • Newsletter Archive
  • Contact Us
  • Video Tutorials
    • Video Tutorials Archive
You are here: Home / Articles / Safety Integrated Level and Performance Levels for Machine Safety

Safety Integrated Level and Performance Levels for Machine Safety

December 7, 2016 By Joan Jacinto Leave a Comment

Before a safety (fail-safe) circuit can be designed and applied to a machine, the required level of safety must be determined.  This is done by performing a risk assessment of all parts of the machine in question.  Based on this assessment, either a Safety Integrated Level (SIL) (SIL1, SIL2, or SIL3) or a Performance Level (PL) (PLa, PLb, PLc, PLd, or PLe) is assigned to each part of the machine.  IEC 62061 addresses SIL levels and ISO 13849-1 addresses Performance Levels.  While there are two different standards, the scope of each standard is very similar.  Note that either a SIL or Performance Level would be used, but not both.  The figure below shows an overview of the risk assessment process:

safety_pic

Both SIL and PL levels correlate to each other as shown below:

safetypic2

 

Have an Inquiry for Siemens about this article? Click Here >>
 
 

Filed Under: Articles, Power

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Protected with IP Blacklist CloudIP Blacklist Cloud

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Siemens Automation Events
Browse for events in your state
Click here for automation articles and resources
Siemens webinars

Subscribe to our mailing list

* indicates required

TOTALLY INTEGRATED AUTOMATION

  • Subscribe to our newsletter
  • Video tutorials
  • About us
  • Contact us

NEWSLETTER ARCHIVES

  • TIA Enews Archive
  • Automotive Version
  • Packaging Version

Copyright © 2019 · WTWH Media LLC and its licensors. All rights reserved.
The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of WTWH Media.

Privacy Policy