VEDA HCT User Manual Click here to download Fig. 25 ② Select the project downloading mode, USB or network, and click OK to download, as shown in Fig. 26. If “Communication failure” appears, please check if the downloading line is correctly connected (USB line or network line). If the downloading operation is failed, please cut off the power supply to restart the HMI and try again. Click here Fig. 26 ③ Wait till downloading is completed, and then click “OK”, as shown in Fig. 27. 9