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How to Handle RS-485 Communication Interference and Proper Hardware Wiring

RS-485 is a robust and widely used communication standard, especially in industrial automation, where long-distance data transmission and multiple devices sharing a bus are common. However, despite its inherent noise immunity, improper wiring and external factors can lead to communication interference. In this article, we’ll delve into ways to manage interference in RS-485 systems and […]

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Understanding the Permissible Duration of Interlock System Temporary Removal

Interlock systems are critical components in many industries, designed to ensure safety by preventing unintended or dangerous operations. However, there are situations where interlock systems may need to be temporarily bypassed or removed, such as during maintenance, testing, or troubleshooting. While this is sometimes necessary, the duration for which an interlock system can be safely

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How to Implement Remote Control for Distributed Systems Using PLCs

1. Introduction Remote control refers to the ability to monitor and manage the behavior and outcomes of system components located in distant or distributed areas. Programmable Logic Controllers (PLCs), known for their versatile communication interfaces and robust networking capabilities, are well-suited for remote control applications. With continuous advancements in PLC networking modules and architectures, implementing

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How to Properly Select and Install an Isolated Safety Barrier

Selecting and installing an isolated safety barrier (also known as an intrinsically safe barrier) is crucial in hazardous environments to ensure both personnel safety and reliable system operation. These devices are widely used in industries such as oil and gas, petrochemicals, and other sectors where flammable gases, vapors, or dusts are present. To achieve optimal

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Why Modbus Is the Preferred Choice in Industrial Automation over BACnet

In the realm of automation, choosing the right communication protocol is crucial for ensuring system compatibility, reliability, and cost efficiency. While BACnet is widely used in building automation systems, Modbus remains the dominant protocol in industrial automation. This article explores both protocols, compares their features, and explains why Modbus is often the preferred solution in

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Ship Draft Measurement: Ensuring Safe and Efficient Navigation

How Radar and Ultrasonic Level Sensors Improve Ship Stability, Compliance, and Fuel Efficiency 1. Importance of Draft Measurement Draft—the vertical distance from the waterline to the lowest point of a vessel’s hull—is one of the most critical parameters in maritime operations. Accurate draft measurement plays a vital role in ensuring safe navigation, reducing the risk

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Management, Maintenance, and Fault Handling Requirements for SIS (Safety Instrumented System)

The Safety Instrumented System (SIS) plays a critical role in industrial safety by implementing Safety Instrumented Functions (SIF) to prevent or mitigate hazardous events. Effective management, routine maintenance, and proper fault handling are essential to ensure SIS functionality and system integrity. This article outlines detailed best practices and requirements across these three aspects. 1. Management

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Boost Your RS-485 Communication Resilience: 7 Proven Strategies

Introduction In the realm of industrial automation and smart applications, the RS-485 communication protocol stands out for its long transmission range, multi-point connection support, and cost-effectiveness. However, in complex industrial environments, RS-485 communication can face challenges such as electromagnetic interference (EMI), grounding issues, and ground loops, leading to unstable communication or even complete disruption. Enhancing

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The Difference Between SIS (Safety Instrumented System) Interlocks and DCS (Distributed Control System) Interlocks

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

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Why Should a Normally Closed Contact Be Used for the Stop Button in PLC Systems?

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

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