Mitsubishi Electric MELSEC-Q/L - Page 651

7 APPLICATION INSTRUCTIONS
7.12 Special Function Instructions
649
7
• 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]
[Operation]
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 ( )
1
2
3
4
Step Instruction Device
BDSQR operation
BDSQR
D2
BCD value
8 6 38
D3
BCD value
6 233
D0
BCD value
5 813
D1
746 2
DMOV
BCD value
74625813
Y5F
BCD value
8 6 38
Y50
Y4F
BCD value
6 233
Y40
Transfer
MOV
Transfer
MOV
Integer part
Decimal fraction part
1
2
3
4