Process Safety 

Process Safety SIS

Safety Integrated

Regardless of plant complexity or size, safety and security are a high priority for the process industry. Siemens SIMATIC PCS 7 and SIMATIC SIS Compact provide Safety Instrumented System (SIS) solutions specifically designed to protect your critical assets.

Questions about Process Safety?

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What's new?

Siemens Webinar Series

Process Automation Innovation Tour USA

Using Certified PLCs as BMS for a Natural Draft Gas-Fired Multi-Burner Process Heater Following API 556 and IEC 61511

How do you determine how much automation is needed in a fired heater? Are all fired heaters the same in refineries and petrochemical plants? We will address these questions and more by reviewing Annex A of the ANSI/ISA TR84.00.05 - Guidance on the Identification of Safety Instrumented Functions (SIF) in Burner Management Systems, a reference on heater applications for refineries and petrochemical plants.

Integrated Safety Lifecycle Tools

All Siemens process safety systems are designed and built in accordance to relevant national and international safety standards (ISA, IEC, NFPA, API etc.) to ensure compliance.


Our system benefits include:

  • Reduce operator error - best-in-class local HMI for better operation and maintenance

  • Reduce risk - SIL-certified safety library

  • Improve plant availability - Flexible redundancy options

  • Achieve functional safety requirements - complete safety lifecycle tools 


    Studies show that incorrect specifications are the number-one cause of process-related accidents. Avoid these unnecessary risks by downloading the SIS specification that will help your safety system project move along smoothly.

PCS 7 safety

7 reasons SIMATIC PCS 7 is your choice for process safety

  • Intuitive interface makes it easy to comply with OSHA's process safety management (PSM) requirements for documenting and managing your dedicated Safety Instrumented Systems (SIS)

  • Complete range of safety-rated field devices flexible enough to stand alone and operate as an independent Safety Instrumented System 

  • Simple process safety with automatic self-diagnostics that remove the need for manual proof tests

  • Scalable I/O options for small, compact to large and remote applications

  • Secure SIL-rated communication protocols protect against unauthorized interference

  • Integrated handling of both safety and standard signals provides a cost effective motor management system for safety applications that require final control of low voltage process motors

  • Available flexibility to support multiple redundant architectures, preventing nuisance trips without compromising safety


SIMATIC SIS Compact - The Stand-Alone Safety PLC

SIMATIC SIS Compact was designed as a dedicated safety control system for Safety Instrumented Systems (SIS) based on selected system components of SIMATIC PCS 7 and the SIMATIC Safety product portfolio.




SIS Compact Benefits:


  • Reduced cost - The SIS Compact is designed as a stand-alone SIS without the DCS overhead

  • Low risk - Using the field-proven SIMATIC technology with over 30 years of SIS experience

  • Industry compliant - Certified by TUV for Safety (IEC 61508) and Security (IEC62443)

  • Reduced false trips – Fault-tolerant architectures provide high system availability

  • Simplified maintenance - Uses the latest state-of-art SIS tools (function block and cause-and-effect diagrams) for easy trouble shooting and MOC

  • Powerful - Can also support integrated control functions when physical separation isn't feasible or practical

  • Expandable - Supports the ability to network multiple systems together as your plant needs grow

Benefit from a wide range of applications


SIMATIC SIS Compact – designed for use in safety-critical applications in the process industry.

SIMATIC SIS Compact can be used for safety applications up to SIL 3, as per IEC 61508. In addition to the engineering tools, the SIMATIC SIS Compact also offers an optional operator package to provide and integrated HMI to operate, monitor and maintain your SIS.


Industry applications include:

  • Burner management systems (BMS)
  • Emergency shutdown systems (ESD)
  • Fire and gas applications (F&G)
  • High integrity pressure protection systems (HIPPS)
  • Tank overfill prevention
  • Cause & effect matrix programming and visualization option

Burner Managment Systems (BMS)

Integrated safety for a single BMS that meets today's safety standards


Download a white paper by Exida for information about the latest standards required for combining control and safety in certain applications.

Studies show that incorrect specifications are the number-one cause of process-related accidents. Avoid these unnecessary risks by downloading the following Burner Management Systems (BMS) specification that will help your safety system project move along smoothly.


Download BMS Specification

SIMATIC Safety Matrix: The Safety Lifecycle Management Tool

SIMATIC Safety Matrix, the powerful cause-and-effect software for process automation, allows for significantly faster and more convenient configuration of safety applications. Designed to reduce costs and effort for engineering, commissioning and maintenance, this TÜV-certified safety lifecycle management tool can be used for applications up to SIL 3 according to IEC 61508.


Benefits include:

  • Flexibility: Can be used in all phases of the safety lifecycle
  • Ease of use: Simple, intuitive operation and monitoring with no special programming skills required, making it possible to focus fully on the safety requirements of the plant
  • Reduced plant downtime: Events and alarms are transmitted directly to the SIMATIC PCS 7 operator system

Choosing Functional Safety Instrumentation

Certified, prior use or both? Fundamentals of VDI 2180. Can you justify safety instrumentation?


Determining the equipment to use in safety instrumented systems (SIS) and the rules for maintaining them is one of the most difficult and controversial topics in the industrial SIS marketplace. Learn more from Siemens industry experts.

Support and Services

Customer Support

USA Support hotline
Siemens Industry, Inc

2060 Detwiler Road, Suite 111

Harleysville, PA 19438  




To remain competitive, companies in industry must ensure – and ideally increase – the availability and productivity of machines and plants. As your partner, we offer a unique range of services and support based on our extensive technology and industry expertise.



Receive standardized or individual expertise directly from the manufacturer – with training centers in more than 60 countries.


How can we help you? 

Benefit from our product range for process safety and our safety experts.