Mitsubishi Electric M800VW Series Programming Manual page 123

M800V/M80V Series PLC Programming Manual (1/2)
6 Explanation of Instructions and Functions
6.3 Data Designation Method
If the source side is a digit-designated bit device, and the destination is a word device, the word device on the destination side
will be 0 after the digit-designated bits on the source side.
Ladder example
With 32-bit instructions
DMOV
 When using word devices
A word device designates devices used by the lower 16 bits of data.
A 32-bit instruction uses (designation device number) and (designation device number + 1).
M0
IB-1501667-B
K1X0 D0
Source (S) data
DMOV K100 D0
The 2 points D0 and D1(32 bits) are used
32-bit data transfer instruction
Processing
Become 0
b15
0 0 0 0 0 0 0 0 0 0 0
D0
0 0 0 0 0 0 0 0 0 0 0
D1
b31
Become 0
102
X3X2X1X0
K1X0
b4 b3 b2 b1 b0
0 X3X2X1X0
0 0 0 0 0
b16