siemens real time clock

what is the best way to move the real time clock data to a v memory in a siemens 545 controller?

First read the clock data using the READ_RTC command. This command will save the 8 clock data words into a T buffer (8 VB-memory addresses). Then you can access any part (Year, Month, Day, Hour, Minute, Second, day of week) with normal word instructions, such as MOV_W. there are also other commands to access different parts of the clock, such as TODR (Read Time of Day).