Author | Green Alliance Technology, GeWu Laboratory, Chen Jie Background In many upper-level configuration software, in order to facilitate developers for debugging and analysis, simulators are often equipped to simulate real PLC or HMI devices. These software generally exchange data with configuration software via TCP/UDP protocols, so some simulators may listen on specified ports, and … Read more
Search on WeChat Technical Training Can learning PLC be beneficial? Yes! It can lead to projects and income! So how can one undertake a project? What skills and knowledge are required? Today, let’s discuss these topics. Different PLC models carry different project scopes. Siemens S300/400 PLCs and S1500 PLCs are considered medium to large PLCs, … Read more
1. Determine the Connection Scheme, as follows: 2. Hardware Wiring The following are the wiring terminals of the touch screen, which has 9 pins, divided into one group of RS232 and another group of RS485. 1) RS232 is used to connect to PLC (COM1) Main Touch Screen Panasonic PLC 2) RS485 is used for connection … Read more
Engineers often encounter the problem: why can’t my touchscreen communicate with the PLC? For example, here are two issues: 1. The Wecon touchscreen cannot communicate with the Siemens PLC, always prompting that the PLC is unresponsive. What should be set up? Solution approach: You need to set the same baud rate, the same bit count, … Read more
Number of Connections The S7-200 SMART CPU can connect to Siemens HMI devices that support the PPI protocol through the integrated RS485 port or signal board, or connect to Siemens HMI devices that support the S7 protocol through the integrated Ethernet port. When the CPU’s three physical interfaces are connected to Siemens HMI devices (including … Read more
Search on WeChat Jicheng Training Masters often encounter the following issue: Why can’t my touch screen communicate with the PLC? Here are two common problems: 1. Weintek touch screen cannot communicate with Siemens PLC, always prompting that the PLC is unresponsive. What settings should I use? Solution approach: You need to set the same baud … Read more
PLCs, inverters, and human-machine interfaces (HMIs) are essential devices in modern industrial automation control. Their applications have made factory production and manufacturing processes more automated, efficient, precise, and controllable, greatly advancing the automation process of China’s manufacturing industry and contributing significantly to the country’s modernization efforts. A touch screen is a digital input-output device with … Read more
Click on “ Technical Training ” above and select “Pin to Top” Over 130,000 industrial control professionals follow this WeChat platform: technical sharing, learning exchanges, industrial control videos We all know that HMI touch screens may experience touch offset due to various factors such as installation or on-site environment, meaning the touch point does not … Read more
Many technicians often encounter the following issue: why can’t my touch screen communicate with the PLC? For example, here are two common problems: 1. Weintek touch screen cannot communicate with Siemens PLC, constantly indicating that the PLC is unresponsive. How should I set it up? Solution Approach: Ensure that the baud rate, data bits, and … Read more
Just like using a PAD (tablet), with a pinch and a stretch, you can grasp all the industrial site situations at your fingertips; sitting in the office with a PAD or smartphone, you can connect to the network to remotely monitor the industrial site and make timely adjustments… Such a scene, once so unattainable in … Read more