This user guide explains how to connect the haiwell plc withpc via a RS232 port of the PLC.The Desktop or laptop computer should have aserial port of DB9. Or the user have to use the USB to RS232 conv
With the rapid development of the modern production technology, thedemand of wastewate treatment plants is increasing. Inrecent years, many medium-and-small sized wastewater plants
With the rapid development of China's economy, the family vehicle and social vehicles are growing rapidly, parking lot construction has become an indispensable part. And only if a parking...
1. Introduction：In many engineering applications, people always hope that the system can have the time reminder function, no need for man to timing. Nowadays many PLCs already has this function.But th
Haiwell PLC’s recipe control function:The recipe management control is often needed in the production process. The so-called recipe control is using different control parameters according to the diffe