Year: 2025

Practical Sharing: Modbus Communication Programming Examples – An Exciting Series!

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Practical Sharing: Modbus Communication Programming Examples - An Exciting Series!

Modbus Communication Programming Example (1) Recently, I have been writing about Modbus and fieldbus introductions separately, which are more conceptual and do not involve specific examples. Many readers may still find it insufficiently detailed. Since I am no longer engaged in specific programming debugging, providing direct examples is quite challenging. I referenced some materials from … Read more

Communication Between S7-200 SMART and Weighing Instruments via MODBUS Library

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Communication Between S7-200 SMART and Weighing Instruments via MODBUS Library

First, we will introduce our hardware preparations. 1. A weighing instrument that supports the Modbus protocol Weighing instrument that supports the Modbus protocol 2. Set the communication parameters of the instrument You can adjust according to your requirements, as long as it matches the PLC side. Baud rate: 9600 Data format: 8n1: 8 data bits … Read more

Collection of 20 Types of Frequency Converter Modbus Communication Register Allocation Tables

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Collection of 20 Types of Frequency Converter Modbus Communication Register Allocation Tables

I have previously worked with microcontrollers and various models of frequency converters including Mitsubishi D700, Siemens G120, Omron 3G3JZ, Panasonic VF200, Delta VFD-M, Xinjie VB3, Yonghong FID-B10, Chande IS7, Inovance MD500, Invt Goodrive10, Schneider ATV12, Haiwei E, Holley HGD303, Taian F510, Hexin F2A, Rockwell PowerFlex-4, Fuji FRENIC-VP, Boke CV20, Yaskawa A1000, and Weichuang Artrich-AR60T. Most … Read more

Siemens 200SMART Modbus RTU Communication Example

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Siemens 200SMART Modbus RTU Communication Example

Click↑↑Technical Training, follow and pin it to subscribe for free long-term Over 200,000 industrial control professionals follow this WeChat platform: technical sharing, learning exchange, industrial control videos Communication Materials:1) Two PLCs, namely the 200SMART CR60 and SR20;2) Two DP connectors (6ES7972-0BX12-0XA0)3) Several connecting wires (for PLC power and communication)Verification Content:Set: CR60 PLC as the master … Read more

Weapon Profile: Swiss SIG Sauer SIG552

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Weapon Profile: Swiss SIG Sauer SIG552

Shortly after the end of the Cold War, the world-renowned firearms manufacturer SIG designed a suitable close-quarters battle rifle for the Swiss special police forces. This led to the creation of the SIG 552 assault rifle, nicknamed “The Commando.” The SIG 552 assault rifle was launched in 1998 and is the shortest model in the … Read more

Troubleshooting SWD Connection Issues with Your Board

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Troubleshooting SWD Connection Issues with Your Board

The board is ready, and the MCU is soldered, but the SWD cannot connect, and the program cannot be downloaded. What should I do? This issue seems to occur frequently, so I would like to share some recent cases I encountered. 1) Case 1: Engineer A made 5 boards, but none could connect. After confirming … Read more

Q&A with Experts: Unable to Program QSPI Flash in Original Mode During JTAG Boot

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Q&A with Experts: Unable to Program QSPI Flash in Original Mode During JTAG Boot

Problem Description In the Zynq 1.0 version chip, I attempted to program (erase/write/read) the QSPI in the original mode, but the code hangs when booting in JTAG mode. Solution When the QSPI flash is in the original mode, MIO[5] is connected to the HOLD signal. To ensure that the HOLD signal is not held low … Read more

Mastering JTAG Tools: Using JTAG Probe to “Reverse Engineer” Hardware Circuits

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Mastering JTAG Tools: Using JTAG Probe to "Reverse Engineer" Hardware Circuits

On various second-hand websites, you can often find boards that lack accompanying documentation (such as schematics), and these boards are relatively inexpensive. If purchased in bulk, they can be used as development boards. The first challenge is to “reverse engineer” the schematics for subsequent routine development. Currently, there are two software tools that can assist … Read more

Advanced GIS: Super Clipping Tool – Batch Partition Clipping Based on ArcGIS ModelBuilder

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Advanced GIS: Super Clipping Tool - Batch Partition Clipping Based on ArcGIS ModelBuilder

Introduction: This article is a submission from the adorable Nannan♂ of 【DianDian GIS】, which has been sitting with me for half a month. If I don’t publish it soon, he might kill me. So without further ado, here is his article~ The original intention of writing this article was that manual clipping was too exhausting … Read more