PLC

In industrial automation and safety management, two critical systems ensure both the safety and efficiency of operations: the Safety Instrumented System (SIS) and the Distributed Control System (DCS). Both systems implement “interlocks” that trigger automatic responses to specific conditions in industrial processes, but their roles, purposes, and functions are fundamentally different. Understanding the distinction between […]

In the design of Programmable Logic Controller (PLC) systems, safety and reliability are top priorities—especially when it comes to how stop functions are implemented. A common and critical recommendation in industrial control engineering is to use a normally closed (NC) contact for the stop button. But why is this the best practice? This article explores

In industrial process control systems, signal isolators play an essential role in transmitting and conditioning analog signals. Among various configurations, the 1-in 2-out signal isolator (also known as a signal distributor) is commonly used to split one input signal into two independent outputs. However, when it comes to Safety Instrumented Systems (SIS), which are governed

1. Introduction Modern industrial plants rely on a wide array of automation and safety systems to ensure operational efficiency, product quality, and personnel and environmental safety. Among these, systems such as DCS, SIS, GDS, CCS, PLC, PAS, and MMS each play specific, critical roles.This article aims to clearly define each system, explain its purpose, highlight

Instrumentation and automation control systems rely heavily on different types of signals to monitor, control, and automate processes. These signals represent physical parameters or communicate between devices to ensure precise operation and coordination. Understanding the various types of signals, their characteristics, and their uses is crucial for the design and operation of effective control systems.

1. Overview of SIS (Safety Instrumented System) A Safety Instrumented System (SIS) refers to an instrumentation system capable of executing one or more safety functions. SIS is a broad concept that includes several subsystems such as: ESD (Emergency Shutdown System) BMS (Burner Management System) HIPPS (High Integrity Pressure Protection System) F&GS (Fire and Gas System)

Laying conduit and cabling in instrumentation and control systems requires careful planning and execution to ensure both efficiency and long-term reliability. These systems are often intricate and sensitive to electrical interference, making proper cable management essential. In this article, we will explore key steps and best practices for efficiently laying conduits and cables in industrial

In industrial automation projects, advanced control strategies are often defined in the early stages—either by the client or the solution provider. However, regardless of the source, these strategies must remain flexible. Evaluating a project solely based on the initial control structure is not only unrealistic but may also lead to performance issues. From Initial Concepts

A Safety Instrumented System (SIS) is an essential part of industrial process safety, designed to automatically monitor, control, and protect critical processes in various industries, such as oil and gas, petrochemical plants, power generation facilities, and more. The primary objective of an SIS is to prevent accidents or mitigate their impacts by detecting hazardous conditions

In the fields of industrial automation, engineering, and functional safety, three concepts often arise: Availability, Reliability, and Safety Integrity Level (SIL). Although they are related to system performance and safety, their definitions, evaluation methods, and applications are distinct. This article explores the core differences, applications, and evaluation techniques of each. 1. Availability Definition: Availability refers