Move Instructions; Mov - Move - Allen-Bradley MicroLogix 1100 Instruction Set Reference Manual

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Move Instructions

The move instructions modify and move words.

MVM - Masked Move

Instruction Type: output

Execution Time for the MOV Instruction

MicroLogix 1100

The MOV instruction is used to move data from the source to the

destination. As long as the rung remains true, the instruction moves the

data each scan.

Using the MOV Instruction

When using the MOV instruction, observe the following:

• Source and Destination can be different data sizes. The source is

converted to the destination size when the instruction executes. If

the signed value of the Source does not fit in the Destination, the

overflow is handled as follows:

– If the Math Overflow Selection Bit is clear, a saturated result is

stored in the Destination. If the Source is positive, the Destination

is 32767 (word). If the result is negative, the Destination is -32768.

– If the Math Overflow Selection Bit is set, the unsigned truncated

value of the Source is stored in the Destination.

• Source can be a constant or an address.

Move the source value to the destination.

Move data from a source location to a selected

portion of the destination.

When Rung Is:

Publication 1763-RM001C-EN-P - October 2009

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