Can other language be used in Varplus logic VPL12 ?

NO, it is not possible.
Display does not represents matrix. On the contrary, some texts and symbols are imprinted in the display, so they cannot be modified, then only can be switched on or off. For example texts INFO, MANUAL, SETUP, AUTO, ALARM, EXPORT, cos, THD, PQSUI, VAWvarh, FAN
The rest part of display contains 3 in upper row and 4 , 7-segment digits/characters in lower row.

Released for:Schneider Electric Canada