A few months ago, while commissioning a project, I encountered some serious issues with the communication performance of an industrial Ethernet network using a star topology. The data transmission speed between the local substations was extremely slow, and even the communication between the upper system and the local stations was lagging significantly. Some control functions couldn’t be executed at all, which made it clear that there was a critical network issue that needed to be resolved immediately.
After spending a considerable amount of time analyzing the problem and conducting various experiments, I finally found three effective solutions. I decided to share them here in hopes that they might help others facing similar challenges.
1) I replaced the original Read_Reg function block used for inter-station data reading with CRead_Reg in the Momentum series PLC program, which is based on Concept 2.6. This allowed the module to automatically read the required data continuously, improving efficiency and reducing delays.
2) Previously, the sub-stations were treated as equal peers, with both A and B stations reading from each other. This often caused network congestion. After optimization, one station was designated as the main station, which initiated the read/write operations, fetching the necessary data from the other station and sending its own data back. This approach reduced unnecessary traffic and improved overall communication stability.
3) I also optimized the data transmission part of the original program by replacing multiple separate read/write function blocks with a single continuous read/write operation across multiple registers. This not only simplified the code but also significantly improved the speed and reliability of data exchange.
By implementing these three improvements, the network communication issue was successfully resolved. The system now runs smoothly, with faster data transfer and more reliable control functions. I hope this experience can be useful to others working with industrial Ethernet networks.
UL Solar PV cable is a cable for solar photovoltaic systems. It is certified by Underwriters Laboratories (UL) and complies with international safety standards to ensure safety and reliability in solar energy systems.
UL Solar PV cable is manufactured from high-quality materials with high temperature resistance and strong weather resistance, and can work in a variety of harsh outdoor environmental conditions. It has excellent wear resistance and anti-aging properties, and can maintain good electrical performance for a long time.
The cable uses multiple copper conductors to provide low resistance and high conductivity, ensuring the efficiency and stability of power transmission. It also has excellent corrosion resistance and can resist the erosion of chemicals and ultraviolet rays, extending the service life.
UL Solar PV cable typically has a double insulation layer to provide additional safety protection. It is also specially designed for easy installation and connection, reducing system maintenance and troubleshooting time.
In summary, UL Solar PV cable is a high-quality, safe and reliable cable for solar photovoltaic systems, suitable for installation and use in a variety of outdoor environmental conditions. It is able to efficiently transmit electrical energy and provide additional security protection, providing stable and reliable support for the operation of the solar system.
UL Solar PV Cable,Solar Photovaltic Panels,Photovaltic Wire Solar Cable,Speaker Cable
Suzhou Yonghao Cable Co.,Ltd. , https://www.yonghaocable.com