Direct Link function is a feature who allows to the programmer to upload/download the PLC program connecting the PC directly to the HMI.
So the HMI bypass the PC directly to the PLC.
This function is so useful when the PLC is so hidden inside the cabinet, you forget your RS232 programming wire (DVPACAB2A30) or you just want to avoid those annoying and sometimes unreliable USB-RS232 converters.
The major problem in the past was the impossibility to debug the PLC and HMI at the same time while the bypass is running.
According to that our HMI department send us some video showing this new updating for the Direct Link function.
This Feature is available too with ISPSoft