- May 6, 2025A Watchdog Timer resets or shuts down a system if the main program stalls. It’s a last-resort safety mechanism in…
- May 6, 2025Type A devices have predictable failure modes. Type B are complex (like smart instruments) and require more rigorous analysis.
- May 6, 2025Smart Logic Modules are safety-rated processors with advanced diagnostics. They often form the logic solver in a SIS.
- May 6, 2025A Safety PLC is a programmable logic controller certified to perform Safety Instrumented Functions (SIFs) in compliance with SIL requirements.…
- May 5, 2025Routes define the evidence path to prove a device meets SIL requirements—based on hardware and systematic capability.
- May 5, 2025A PES is a programmable device—like a PLC or DCS—used to implement safety or control functions in an industrial process.
- May 5, 2025A Logic Solver processes input signals and triggers outputs to carry out SIFs. Most often, it’s a Safety PLC.
- May 5, 2025An Instrument detects process conditions and sends signals to logic solvers—commonly a transmitter, sensor, or switch in a SIF.
- May 5, 2025HFT describes how many faults a system can tolerate before losing its safety function. It’s central to SIL capability.
- May 5, 2025The Final Element is the last piece of a SIF—like a valve or relay—that directly drives the process to a…