Pay attention to following problems for the PLC and PC online

2016-08-17 14:26:14 Xiamen Haiwell Technology Co., Ltd. Read

1. Try to buy the 【USB - RS232 serial conversion line】with a famous brand ,for the quality can be guaranteed and the driver is stable

2. Always use a same USB port, because after the replacement of different USB port it needs to reinstall the USB driver, and the generated serial port is not the same.