Functional Safety Engineering: Fast, Pragmatic Compliance (SIL3 & PLd)
We build it. You sell it.
Functional safety should shape your embedded system before it becomes an audit problem.
HALready turns safety requirements into real engineering decisions across hardware architecture, embedded software, custom electronics, and Verification & Validation.
Whether your system targets SIL3, PLd, or another required safety level, we build the safety requirements into the architecture from the start. That means identifying risks early, choosing the right protection mechanisms, and creating the technical evidence needed for functional safety compliance.
And speed does not mean cutting corners.
Our pragmatic approach focuses engineering effort where it reduces risk and moves the product forward. Fewer late redesigns. Less technical chaos. A clearer path toward validation, certification, and production.
We build it. You sell it.
Not sure what your system needs to reach compliance?
Book a Free 60-Minute Product Sparring Session to discuss your safety requirements, architecture, risks, and practical path forward.
Smart Code. Smarter Devices.
What is Functional Safety in Embedded Systems?
A standard embedded system is designed to perform its intended function.
A safety-critical embedded system must also respond safely when something goes wrong.
Functional safety focuses on identifying faults that could create unacceptable risk and designing automatic protection functions to control that risk. If a sensor fails, software crashes, communication is lost, or hardware develops a fault, the system must detect the problem and move toward a defined safe state where required.
The objective is not to eliminate every possible risk. It is to reduce risk to an acceptable level and understand the residual risk that remains after safety measures are applied.
That changes how the entire embedded system is engineered.
Safety requirements can influence hardware architecture, software structure, diagnostics, redundancy, monitoring, and failure handling from the beginning.
Because in functional safety, the question is not only:
“Will the system work?”
It is also:
“Will it fail safely?”
Navigating International Safety Standards
Functional safety standards overlap, but they are not interchangeable.
The right framework depends on your industry, product, and safety-related control system.
Standard | Common Application | Safety Classification |
IEC 61508 | Electrical, electronic, and programmable safety-related systems | SIL 1 to SIL 4 |
ISO 26262 | Road vehicles and e-mobility | ASIL A to ASIL D |
EN ISO 13849 | Safety-related parts of machinery control systems | PL a to PL e |
IEC 62061 | Safety-related control systems for machinery | SIL-based |