Requirements for safety-relevant Human Machine Interfaces (HMIs) for train operators are becoming more common around the world. The evolution toward safety-relevant HMIs for train control is already ...

Commercial buildings require emergency lighting to facilitate the safe egress of occupants in the event of a power outage or other emergency. Emergency specifications that meet UL 924, Standard for ...

The control systems world is changing. Historically, process control systems—which include all industrial control, process control, supervisory control and data acquisition (SCADA), distributed ...

Smoke detectors, not the dampers, are connected to the fire alarm system (if present) in Chapter 7 applications as shown in Figure 6. Chapter 9 systems have various allowable methods for detection and ...

Across the NYC metropolitan area, access control failures are becoming more visible. Lost keycards, shared PIN codes, ...

Developed by the International Society of Automation (ISA), the ISA-5 series of standards are essential for industries that rely on complex instrumentation and control systems, including chemical ...