Modbus RTU

Understanding MODBUS-RTU Protocol: Mastering Industrial Communication with Four Core Function Codes (01/03/05/06)

by
Understanding MODBUS-RTU Protocol: Mastering Industrial Communication with Four Core Function Codes (01/03/05/06)

In the field of industrial control, MODBUS-RTU is one of the most universal and time-tested communication protocols. It acts like the “Mandarin” among devices, allowing instruments, PLCs, and controllers from different manufacturers to communicate smoothly. Today, I will set aside complex theories and directly guide you through the four most commonly used function codes:01, 03, … Read more

Understanding the Basic Connection Methods and Communication Principles of PLC and Inverters

by

To quickly learn how to control inverters using PLCs, it is essential to master the basic connection methods and communication principles between PLCs and inverters. Below are some common control methods and technical points to help you get started: 1. Connection Methods between PLC and Inverter 1. Analog Output Control of Inverter This method controls … Read more

The Art of Reviving Inverters: Naisun Automation’s RS232 to ProfiBus Gateway Connection

by
The Art of Reviving Inverters: Naisun Automation's RS232 to ProfiBus Gateway Connection

In the field of power automation, inverters serve as the core devices for motor control, and the compatibility issues of their communication protocols have long troubled engineers. When the 15-meter transmission distance limitation of RS232 collides with the 1200-meter long-distance communication requirements of ProfiBus, and the 9600bps serial port rate starkly contrasts with ProfiBus’s 12Mbps … Read more

Connecting Beckhoff PLC with Pro-face Touch Screen

by
Connecting Beckhoff PLC with Pro-face Touch Screen

The different series of Beckhoff products can be connected to Pro-face touch screens in the following ways: lPhysical connection port settings: When connecting Beckhoff PLC and Pro-face touch screens, it is essential to ensure that the protocol specifications of the ports on both machines are consistent. For the commonly used KL6001 Rs232 communication module, we … Read more

Easily Achieve Polling Control of Two Inverters with Mitsubishi PLC and BD Board!

by
Easily Achieve Polling Control of Two Inverters with Mitsubishi PLC and BD Board!

For more exciting content, click to follow and unlock more PLC technical knowledge! In industrial automation control, managing communication for multiple inverters is a common issue. How can we efficiently and stably achieve polling control? This article will guide you step by step! 011. System OverviewPolling Control Technology allows centralized management of multiple inverters through … Read more

Mitsubishi FX5U PLC Communication Guide: Four Core Instructions and Selection Strategies

by
Mitsubishi FX5U PLC Communication Guide: Four Core Instructions and Selection Strategies

Click the blue text PLC Automation Exchange Follow us In industrial automation projects, stable communication between PLCs and various devices (HMI, inverters, instruments, robots, etc.) is key to ensuring efficient system operation. The Mitsubishi FX5U, as a high-performance compact PLC, offers a wealth of communication features. This article will delve into the four main communication … Read more

Hands-On Guide to FX5U and Mitsubishi Inverter RTU Communication

by
Hands-On Guide to FX5U and Mitsubishi Inverter RTU Communication

Search on WeChatTechnical Training1. Task Control Requirements Description Use FX5U to achieve Modbus RTU communication with Mitsubishi E700 inverter, with functions: change frequency, forward, reverse, stop. As shown in Figure 1-1. Figure 1-1 FX5U and Mitsubishi Inverter E700 2. Related Basic Knowledge The case in this task is based on the application of Mitsubishi FX5U … Read more

AEM96 Three-Phase Embedded Energy Meter from Ankerui

by
AEM96 Three-Phase Embedded Energy Meter from Ankerui

The AEM96 three-phase multifunction energy meter is an intelligent energy meter designed primarily for the energy measurement and management needs of power systems, industrial enterprises, and public utilities. To address situations where power outages are not permitted at certain construction sites, the AEM96-CT three-phase multifunction energy meter solution has been introduced. Both the AEM96 and … Read more

Setting the Homing Reset Mode for Modbus RTU Communication Servo Control

by
Setting the Homing Reset Mode for Modbus RTU Communication Servo Control

1. First, set to “Modbus RTU protocol” through [Pr.PC71].Set the “Control Mode Selection” of [Pr.PA01] to program control mode.2. Set the homing reset mode at address 6098H (for example, the commonly used return method with DOG search).3. Save the manufacturer-defined parameters in EEPROM at address 1010H, then power off and restart.4. In Point Table Mode, … Read more

The Golden Partner of RS-485

by
The Golden Partner of RS-485

‖ System Learning Life is like a marathon; sometimes you need to pause and take a breather to go further. Why does Modbus RTU always appear with RS-485? What is RS-485? Before we dive into this issue, let’s first understand what RS-485 is, which you may have heard of but not fully grasped.In official terms:RS-485 … Read more