Rtc(Real Time Clock) Function - Hitachi HX-RIO3 Series User Manual

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HX-RIO3 Series

6.8 RTC(Real Time Clock) Function

A real-time clock (RTC) is a computer clock (most often in the form of an integrated circuit) that keeps
track of the current time. RTC information of RIO3-CP3MBT is stored in address 0x1620 in the Register,
also can be read.
(1) Run '[Hitachi] -> [IOGuidePro] -> [Protocol Messenger] -> [Modbus]'
(2) Write the value of each.
*Protocol : Modbus TCP, Modbus RTU
*ComPort : User Port / Baudrate : 115200(default)
*Address(Hex) : 1620 (RTC Register)
*Function(Dec) : When the value is write - 16, Write Multiple registers
: When the value is read - 03, Read Holding Registers
(3) confirm the necessary information.
*When the value is write *When the value is read
Write the desired value and click the Send button. Click the Send button and confirm the value.