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Industrial Automation PLC Programming Masterclass: Best Practices in Modular Architecture Design and Efficient Code Reuse

Posted by Masterofplc on February 13, 2025

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Can DeepSeek Replace PLC Engineers? Here's What It Can and Can't Do - You Need to Know!

Posted by Masterofplc on February 12, 2025

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Has Artificial Intelligence Shattered the Livelihood of PLC Engineers?

Posted by Masterofplc on February 08, 2025

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Veteran Electrical Engineer's Hard-Earned Lessons: 10 'Deadly Traps' in Motion Control You Must Know - The 5th One Has Caught 90% of Us!

Posted by Masterofplc on February 06, 2025

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Mastering Z-Pulse Homing: Expert Insights on EtherCAT Drives with TwinCAT 3 CNC

Posted by Masterofplc on February 06, 2025

Beckhoff PLC BECKHOFF Q&A

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Mastering File Management in Industrial Control with TwinCAT: A Comprehensive Guide

Posted by Masterofplc on February 05, 2025

Beckhoff PLC BECKHOFF Q&A

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Mastering PLC Signals: Discrete, Analog, and Pulse in Automation Control

Posted by Masterofplc on February 05, 2025

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PLC Project Debugging: Possible Issues You Might Encounter

Posted by Masterofplc on February 05, 2025

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Double Your PLC Programming Efficiency! 5 Hidden Tools & 3 Hardcore Tips from Veteran Engineers to Save 50% of Overtime!

Posted by Masterofplc on February 04, 2025

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AI and the Future of Industrial Automation: A Deep Dive into PLC Standardization and the Engineer’s Evolving Role

Posted by Masterofplc on February 04, 2025

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The Space Mining Era is Approaching: Challenges in Technology, Economics, and Geopolitics Await!

Posted by Masterofplc on February 02, 2025

Industry information

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Why Avoid Using M and T in PLC Programs? The Need for PLC Programming Standardization

Posted by Masterofplc on January 31, 2025

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Why Can't We Write a Perfect PLC Program in One Go?

Posted by Masterofplc on January 29, 2025

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Why You Shouldn't Open-Circuit or Short-Circuit the Secondary of CTs and PTs

Posted by Masterofplc on January 28, 2025

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Inverter Repair Rhyme: Master 90% of Faults with This Easy Guide!

Posted by Masterofplc on January 28, 2025

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Siemens S1500 vs. S7-300: A Comprehensive Comparison for Modern Industrial Automation

Posted by Masterofplc on January 24, 2025

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Mastering These 16 Frequency Inverter Parameter Settings Will Solve 90% of Debugging Issues!

Posted by Masterofplc on January 23, 2025

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Why are Resistor Values like 4.7kΩ and 5.1kΩ Used Instead of Integer Values like 5kΩ?

Posted by Masterofplc on January 19, 2025

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Popular Posts

Retain values in S7 1200 when power off

So how to set up the power-off data retention function for S7-1200? S7-1200 module (Photo: siemens.com/global) During operation, an unexpected power outage may occur, and the equipment operators hope that certain key data can be preserved in such cases to ensure the normal operation of subsequent production. The S7-1200 series PLC features a retained storage area that can be used to set power-off retained data. In this article, we will discuss how to set up the power-off data retention function for S7-1200. First, let's understand the composition of the internal storage area of the S7-1200 series PLC: The internal storage area of the S7-1200 includes the Load Memory, Work Memory, and Retain Memory. Load Memory: This is a non-volatile storage area, similar to a computer's hard disk. The Load Memory is used to store user project files (user programs, data, and configurations). When no memory card is inserted, users use STEP 7 software to download projects directly...

Pilz Safety Relays ｜How to Use Pilz Safety Relays (Includes Wiring Diagram)

How to Use Pilz Safety Relays?(Includes Wiring Diagram) A robust control system must first and foremost be a secure system—capable of ensuring the safety of individuals and equipment in the event of system failures or emergency shutdowns. When it comes to safety automation systems, the mention of Germany's Pilz company is inevitable. Pilz has been deeply rooted in the field of safety automation for decades, offering a range of safety products, including safety PLCs, safety switches, and safety relays. Notably, Pilz pioneered the development of the first safety relay (PNOZ) for emergency stops, gaining widespread recognition worldwide. Since then, PNOZ has become synonymous with safety relays. Today, Pilz offers a variety of PNOZ safety relay series, such as PNOZsigma, PNOZ X, PNOZcompact, PNOZelog, each with different models. In this article, we will take PNOZ X3 as an example to discuss the usage of safety relays for emergency stop buttons. The appearance of PNOZ X3 is depicted i...

Beckhoff TwinCAT basic tutorial: How to read and write CSV files with TwinCAT

This program is only a slight modification of the official sample program. In the original official sample, multiple modes of reading and writing are demonstrated (CSV files can be considered to be used when more data is required than TXT files, such as recording a small database collection). However, the writing is quite confusing, and there is even no HMI interface. Readers need to learn how to quickly find the input and output in the program, such as TextModeWrite (writing CSV files in text mode). At least they need to locate the variables of the triggered BOOL variable, the file address and folder to be written, and the data to be written (where the data to be written is an array of string type, separated by commas). You can directly open the official program and run it. You can also directly set and reset bWrite in the variable table at the top to test the program's operation. However, it is not conducive to analysis. After two months, you may forget how to make this thing run...

Siemens module passivation and reintegration

What is the passivation and reintegration of a Siemens fault-tolerant module? In fault-tolerant systems, alarms for "passivation" of the fault-tolerant module may sometimes occur. So, what exactly is passivation? Why does passivation occur in fault-tolerant modules? After passivation occurs, how can it be reintegrated to eliminate passivation? Today, in this article, we will delve into this topic. Passivation refers to the phenomenon where, under certain conditions, a fault-tolerant module replaces normal input/output values with fault-safe values, typically 0. Passivation serves as a safety measure, and it occurs under specific circumstances. First, let's introduce several boolean variables related to passivation in the background data block (Instance DB) of the fault-tolerant module: PASS_ON: The enable bit for passivation, defaulting to 0, indicating that passivation is not enabled. The fault-tolerant program can read and write to it; to activate passivation, set PA...

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