500 Startups

Understanding the Differences Between DTU, FTU, TTU, and RTU

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Understanding the Differences Between DTU, FTU, TTU, and RTU

The distribution automation system generally consists of the following levels: distribution master station, distribution electronic station (commonly located in substations, optional), distribution remote terminal units (FTU, DTU, TTU, etc.), and communication networks. The distribution master station is located at the urban dispatch center, while the distribution electronic station is deployed at 110kV/35kV substations. Substations are … Read more

Common Issues and Error Codes of Modbus RTU Communication for S7-200 SMART

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Common Issues and Error Codes of Modbus RTU Communication for S7-200 SMART

Common Issues 1. Does S7-200 SMART support Modbus ASCII communication mode? The STEP 7-Micro/WIN SMART software does not provide a command library for Modbus ASCII communication mode. If the S7-200 SMART CPU is used for Modbus ASCII communication, the user needs to program using the free port communication mode. 2. Can the integrated RS485 port … Read more

Summary of Modbus RTU Issues

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Summary of Modbus RTU Issues

Click on “Benefits Are Here! Free PLC Resources, Do You Want It?“ 1.What Are the Differences Between ModBus RTU and ModBus Communication Protocol? ModBus protocol is an application layer message transmission protocol (OSI model layer 7), which defines a protocol data unit (PDU) independent of the communication layer, that is, PDU=Function Code+Data Field. ModBus protocol … Read more

Detailed Explanation of the MODBUS Standard Protocol

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Detailed Explanation of the MODBUS Standard Protocol

Siemens All Subjects + TIA Portal + EPLAN Electrical Drawing Video Recordings for Sale at Low Price! Chuangkong Education Siemens All Subjects Course Introduction 1. What is MODBUS? 1. Basic Concept: MODBUS is a soft communication protocol initially advocated by MODICON (now a brand of Schneider Electric). After practical applications by most companies, it has … Read more

Complete Guide to Modbus RTU, ASCII, and TCP

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Complete Guide to Modbus RTU, ASCII, and TCP

↑ Click the above “Smart Manufacturing Home” Follow us Source: FreeBuf COM Written in front Hello everyone, I am Xiao Zhi, the owner of Smart Manufacturing Home~ When it comes to digitization, industrial networks and data communication are topics we can never avoid~ Previously, I introduced various protocols, interfaces, etc. in industrial communication: The most … Read more

Linux Backup Strategies and Tool Guide

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Linux Backup Strategies and Tool Guide

In Linux systems, backing up data is an important step to ensure system security and data integrity. Whether you are a personal user or a system administrator, a reliable backup strategy and tools are needed to protect data. This article will introduce three commonly used Linux backup tools: rsync, tar, and dump, and provide practical … Read more

Q&A: Can Different Brands of UPS Be Used in Dual Bus Parallel Operation?

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Q&A: Can Different Brands of UPS Be Used in Dual Bus Parallel Operation?

Yesterday in our discussion group, a friend raised a question regarding UPS. A helpful member in the group provided an answer to this question. I have organized the question for everyone to share and learn from, and you can also share your thoughts in the comments section.Question: Can different brands of UPS be used in … Read more

What Do We Mean By Speed In Startups?

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What Do We Mean By Speed In Startups?

Introduction: This is an article I really like, so I want to say a few more words about it. When doing “Intoxicated Entrepreneurship,” I often ponder what kind of articles can be called “Chicken Soup”. Although this term has become increasingly common in public discourse, and we all seem to be consciously wary of it, … Read more

Lean Investment Insights from Dave McClure of 500 Startups

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Lean Investment Insights from Dave McClure of 500 Startups

Introduction: Dave McClure, a former technology advisor for Microsoft and Intel, later served as the marketing director at PayPal. In 2011, he founded 500 Startups, a startup incubator and investment firm. At the TechCrunch International Innovation Summit in Beijing, Dave McClure was invited to give a keynote speech. The day before his speech, he shared … Read more

The Nerve Endings of Industrial IoT: Core Differences Between RTU and DTU

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The Nerve Endings of Industrial IoT: Core Differences Between RTU and DTU

In smart water supply systems, RTU (Remote Terminal Unit) and DTU (Data Transfer Unit) are key devices that ensure the stable operation of the system. However, there are significant differences between the two in terms of functional positioning, technical characteristics, and application scenarios, which can be distinguished in the following dimensions: 1. Core Functions: “Transmission … Read more