Mitsubishi Electric MELSEC iQ-F Series User Manual page 50

Precautions
Since there is a difference between the clock data of the TimeSynchronization service and that of the FX5 CPU module
(SD210 to SD216, SD8013 to SD8019) as shown below, it is necessary to process the clock data of the TimeSynchronization
service to keep it within the range of the TWR(P) instruction.
• When the time synchronization setting is set to "Output to the buffer memory", the clock data of the item that received 255
(wild card) in the TimeSynchronization service will be FFFFH. ( Page 53 BACnet device setting)
• The range that can be written to the year (SD210, SD8018) of the FX5 CPU module by the TWR(P) instruction is 1980 to
2079 (4-digit year).
Even if the day of the week does not match the date of the TimeSynchronization service data, the day of the week of the
received data will be reflected in the day of the week in the buffer memory.
4 FUNCTIONS
48
4.4 Time Synchronization Function