Memory Copy From Control System To Standby System - Mitsubishi Electric MELSEC iQ-R Series User Manual

26.4
Memory Copy from Control System to Standby
System
This function transfers data, such as programs and parameters, of the CPU module in the control system to the CPU module
in the standby system to match the memory data between the two CPU modules.
Ex.
Replacing the CPU module of the standby system using this function
(1) Remove the CPU module of the standby system.
(2) Mount a new CPU module.
(3) Execute the memory copy function to match the memory data between the two CPU modules.
Data in the following memory is copied.
• Program memory
• Device/label memory (only the file register file area)
• Data memory (only the files in the system folder ($MELPRJ$))
• SD memory card (only the files in the system folder ($MELPRJ$))
• System memory (copying only the system operation setting
Data is copied only when data in the memory differs between the control system and the standby system. When data is the
same between the two systems, data is not copied.
*1 Set in SM384 (System operation setting request) and SD384 (System operation setting).
*2 Check the version of the CPU module used. ( Page 747 Added and Enhanced Functions)
For the module replacement method and the maintenance procedure using this function, refer to the following.
Page 540 Module Replacement in a Redundant System
(1)
(3)
(2)
*1 *2
)

26.4 Memory Copy from Control System to Standby System

26 REDUNDANT FUNCTION
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