What is Masked Move (MVM) Instruction in PLC Ladder Logics?

The Masked Move (MVM) instruction is a word instruction that moves data from a source location to a destination, and allows portions of the destination data to be masked by a separate word.

Masked Move (MVM) Instruction


As long as the rung remains true, the instruction moves the data each scan.

Entering Parameters

Source is the address of the data you want to move.

Mask is the address of the mask through which the instruction moves data; the mask can be a hexadecimal value (constant).

Destination is the address where the instruction moves the data.