In the upgrade and transformation of old equipment projects, it is inevitable to involve the replacement and upgrade of PLCs. However, sometimes the original PLC program of the control system is lost, and a complete annotated original program cannot be found; at other times, the original program may contain proprietary technology blocks; or sometimes the … Read more
In the world of industrial automation, communication between the host computer and PLC is like the heartbeat, which is crucial for the stable operation of the entire system. The heartbeat mechanism, as an effective means to ensure that both parties in communication are always synchronized, is vital for maintaining system reliability. Let us explore the … Read more
1. Network Coupler2. Layer 3 Switch – Set up VLAN Configure the Virtual Local Area Network (VLAN) functionality3. In TIA Portal, check the option to use a router4. Extend Subnet Mask The table below shows the address range that can communicate after extending the subnet mask (having too many devices on the network may slow … Read more
At the end of the article, there are 55 practical case materials.Introduction: In our actual devices, it is often necessary to achieve data exchange between multiple devices. Generally, we use the Modbus RTU protocol, but this type of communication cable connection is not very convenient. Therefore, we can use the Modbus TCP protocol for communication, … Read more
Those involved in industrial automation know that whether the PLC can communicate with the host computer directly determines whether the entire system can operate. Omron’s Fins/TCP and HostLink protocols are the most commonly used on-site, but beginners often stumble on handshake and address configuration. This article does not delve into theoretical concepts; instead, it follows … Read more
☝Click the blue text above to follow me. I hope the suggestions at the end of the article will be helpful to you. Last night, I was almost driven to madness by PC communication; it was really overwhelming.How should I put it? The program logic I wrote was quite straightforward, but when it came to … Read more
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
Introduction The statement “communication is the most frustrating aspect of PLCs” resonates widely among automation engineers, electrical technicians, and field maintenance personnel. This is not an exaggeration, but rather a conclusion drawn from the inherent complexity of communication, the harshness of field environments, and the rapid pace of technological iteration. We can delve into the … Read more
In industrial automation scenarios, Mitsubishi and Siemens PLCs are often used together due to project requirements, and the communication issues between cross-brand devices are often a “high-frequency pain point” for engineers. Today, we will take the Mitsubishi FX5U series and Siemens S7-1200 PLC as examples to break down the practical steps of two mainstream communication … Read more
In today’s wave of intelligent manufacturing sweeping the globe, Programmable Logic Controllers (PLCs) serve as the core components of industrial control systems, and the development of their communication technologies directly impacts the efficiency and flexibility of the entire production system. This article will systematically outline the three major dimensions of PLC communication systems—internal communication, external … Read more