Mitsubishi Electric MELSEC-Q/L Programming Manual page 253

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Operation error
• In any of the following cases, an operation error occurs, the error flag (SM0) turns ON, and an error code is stored into SD0.
Error
Error details
code
4140
The specified device value is not within the following range:
-1022
 | Specified device value | < 2
0, 2
The specified device value is -0, unnormalized number, nonnumeric, and .
4141
The operation result exceeds the following range. (when an overflow
occurs):
1024
|Operation result| < 2
Program example
• The following program adds the 64-bit floating decimal point type real number at D3 to D6 and the 64-bit floating decimal
point type real number at D10 to D13 when X20 goes ON, and outputs the result at R0 to R3.
[Ladder Mode]
[Operation]
D6 D5
D4
D3
D13 D12
5961.437
• The following programs subtracts the 64-bit floating decimal point type real number at D20 to D23 from the 64-bit floating
decimal point type real number at D10 to D13, and stores the result at D30 to D33.
[Ladder Mode]
[Operation]
D13 D12
D11
D10
D23 D22
97365.203
1024
D11
D10
R3 R2
12003.200
D21
D20
D33 D32
76059.797
Q00J/
QnH
Q00/
Q01
[List Mode]
Instruction
Step
R1
R0
17964.637
[List Mode]
Instruction
Step
D31
D30
21305.406
6.2 Arithmetic Operation Instructions
QnPH
QnPRH
QnU
LCPU
Device
Device
6 BASIC INSTRUCTIONS
6
251

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