I am using SD card explorer in order to retrieve some files from the device Advantage Pro EL Lyophilizer from SP Scientific, to do so I am connecting to the device via LAN.
TCP settings, PLC name, port number are all correct and I am able to check the connection.
I use Unit ID 0 (direct)
But after a certain time the "listing of files" stop and the following error message « Cannot communicate with the specified UnitID » is displaying. After this happen, it is impossible to communicate anymore with the device I have to unplug the ethernet cable and plug it again