admin_zero

Introduction In petrochemical production processes, the Safety Instrumented System (SIS) interlock logic is a crucial safety measure ensuring the safe operation of industrial processes. Various SIS interlock configurations, such as 1-out-of-1 (1oo1), 2-out-of-2 (2oo2), 2-out-of-1 (2oo1), and 3-out-of-2 (3oo2), are commonly used. Recently, a new configuration, 4-out-of-4 (4oo4), has been proposed. This article explores the […]

In a recent industrial installation, the reboilers of a distillation column were configured to use steam pressure control. However, concerns were raised regarding the stability of incoming steam pressure, leading to the suggestion of switching to flow control. This proposal included the addition of a steam flowmeter and updating the control scheme. Since this involves

In the realm of industrial automation and control systems, two key components often come into focus: SCADA (Supervisory Control and Data Acquisition) and HMI (Human-Machine Interface). While these systems are interconnected and sometimes overlap in functionality, they serve distinct purposes within industrial operations. Understanding their differences is essential for implementing efficient and effective control systems.