Mitsubishi MELSEC Q Series Programming Manual page 681

(2) The following program calculates the square root of BCD value 74625813 and outputs the
integer part of the result to the 4 BCD digits at Y50 to Y5F, and the decimal fraction part to
the 4 BCD digits from Y40 to Y4F.
[Ladder Mode]
[List Mode]
Step Instruction
[Operation]
1
7 4 6 2
74625813
DMOV
BCD value
Sets the data (BCD value) used
for square root operation (
Executes square root operation (
Outputs the integer part of the
operation result to a display device (
Outputs the decimal fraction part of
the operation result to a display device (
Device
D1 D0
BDSQR operation
2
5 8 1 3
BDSQR
BCD value
BSQR(P),BDSQR(P)
)
1
)
2
)
3
D2
Transfer Y5F Y50
3
8 6 3 8 8 6 3 8
BCD value MOV BCD value
D3
Transfer Y4F Y40
4
6 2 3 3 6 2 3 3
BCD value MOV BCD value
1
2
3
)
4
4
6
6
7
Integer part
8
Decimal fraction part
7-307