As microprocessor-controlled systems begin to carry out more and more functions involving human safety, the importance of close performance monitoring is increasing. The low cost and range of features ...

For those embedded systems that can’t be constantly watched by a human, watchdog timers may be the solution. Most embedded systems need to be self-reliant. It’s not usually possible to wait for ...

In part one of this series, we looked at the PLC’s internal architecture, briefly discussed Ladder Logic programming, Human-Machine Interfaces, advantages of the PLC’s ability to react consistently ...

With the prevalence of microcontrollers (MCUs) as processing units in safety-related systems (SRS) comes the need for diagnostic measures that will ensure safe operation. IEC 61508-2 specifies ...