Read date and time from PLC
In the Falcon SERIES, the location for writing and reading date and time in the PLC is defined by indicating the addresses in the general specifications (report register).
By setting bit 8 in the dynamic control word (start address of control words +04), the values specified for date and time in the report register are loaded into the operator interface and applied as system time. Date and time are transferred in BCD format.
Data transfer is started by means of a positive edge alternation. The operator interface automatically resets the bit to "0". Setting the bit can either be done vie the PLC or using the functions "Set analog variable" or "Set bit".
Report register design: