NA200H series PLC is the latest wide-temperature high-performance small-scale integrated PLC product launched by Nanda Auto Technology Co., Ltd. The NA200H CPU module has its own Ethernet interface, which greatly facilitates the user's use, and can realize remote debugging and data monitoring. At the same time, NA200H is also a wide temperature product, the low temperature can reach minus 40 degrees Celsius, the high temperature 70 degrees Celsius, to meet the use of its harsh environment. At present, the products have been used in Xinjiang, Northeast, Shandong Coast, Fujian, Guangzhou and other places, and most of them are outdoor exposed environments, which have already demonstrated strong environmental adaptability.