Masked Move With Target (Mvmt); Structured Text; Function Block; Fbd_Masked_Move Structure - Allen-Bradley Logix5000 Reference Manual

Chapter 7 Move/Logical Instructions (MOV, MVM, BTD, MVMT, BTDT, CLR, SWPB, AND, OR, XOR, NOT, BAND, BOR, BXOR, BNOT)
Masked Move with Target
(MVMT)
MVMT(MVMT_tag);
Input Parameter Data Type
EnableIn BOOL
Source DINT
Mask DINT
Target DINT
Output Parameter Data Type
EnableOut BOOL
Dest DINT
300
The MVMT instruction first copies the Target to the Destination. Then the instruction
compares the masked Source to the Destination and makes any required changes to the
Destination. The Target and the Source remain unchanged.
This instruction is available in relay ladder as MVM, see
Operands:

Structured Text

Variable
MVMT tag

Function Block

Operand
MVMT tag

FBD_MASKED_MOVE Structure

Description
Function Block
If cleared, the instruction does not execute and outputs are not updated.
If set, the instruction executes.
Default is set.
Structured Text
No effect. The instruction executes.
Input value to move to Destination based on value of Mask.
Valid = any integer
Mask of bits to move from Source to Dest. All bits set to one cause the corresponding bits to move from
Source to Dest. All bits that are set to zero cause the corresponding bits not to move from Source to
Dest.
Valid = any integer
Input value to move to Dest prior to moving Source bits through the Mask.
Valid = any integer
Description
The instruction produced a valid result.
Result of masked move instruction. Arithmetic status flags are set for this output.
Rockwell Automation Publication 1756-RM003N-EN-P - October 2011
Type
FBD_MASKED_MOVE
Type
FBD_MASKED_MOVE
page 297.
Format Description:
Structure MVMT structure
Format Description
Structure MVMT structure