Floating-Point Data Transfer (Double Precision) - Mitsubishi Electric MELSEC-Q/L Programming Manual

Floating-point data transfer (double precision)

EDMOV(P)
High
Basic Process
Redundant
performance
EDMOV
EDMOVP
(S): Data to be transferred or number of the device to which the data to be transferred is stored (real number)
(D): The number of the device to which the transferred data will be stored (real number)
Setting Internal device
data
Bit Word
(S)  
 
(D)
Processing details
• Transfers 64-bit floating decimal point type real number data being stored at the device designated by (S) to a device
designated by (D).
S +3 S +2 S +1 S
4.23542
64-bit floating-point real number
• When an input value is set using a programming tool, a rounding error may occur. For precautions, refer to Page 89
Precautions.
Operation error
• There is no operation error in the EDMOV(P) instruction.
Program example
• The following program stores the 64-bit floating decimal point type real number at D10 to D13 at D0 to D3.
[Ladder Mode]
[Operation]
D13 D12 D11 D10
36.475
• The following program stores the real number -1.23 at D10 to D13 when X8 is ON.
[Ladder Mode]
[Operation]
Universal LCPU
Command
Command
R, ZR J\
Bit


D +3 D +2 D +1
Transfer
4.23542
64-bit floating-point real number
D3 D2 D1 D0
36.475
D13 D12 D11 D10
EDMOV
EDMOVP
U\G Zn
Word
D
[List Mode]
Step Instruction
[List Mode]
Step Instruction
S D
S D
Constant Others
E
 
 
Device
Device
6 BASIC INSTRUCTIONS
6.4 Data Transfer Instructions
6
301