Mitsubishi Electric MELSEC-Q/L - Page 251

6 BASIC INSTRUCTIONS
6.2 Arithmetic Operation Instructions
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6
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.
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 stores the result at D3 to D6.
• The following program subtracts the 64-bit floating decimal point type real number at D10 to D13 from the 64-bit floating
decimal point type real number at D20 to D23, and stores the result of the subtraction at D20 to D23.
Error
code
Error details Q00J/
Q00/
Q01
QnH QnPH QnPRH QnU LCPU
4140 The specified device value is not within the following range:
0, 2
-1022
 | Specified device value | < 2
1024
The specified device value is -0, unnormalized number, nonnumeric, and .

4141 The operation result exceeds the following range. (when an overflow
occurs):
|Operation result| < 2
1024

[Ladder Mode] [List Mode]
[Operation]
[Ladder Mode] [List Mode]
[Operation]
Step
Instruction
Device
D4
5961.437
D3D6 D5
D11
12003.200
D10D13 D12
D4
17964.637
D3D6 D5
Step
Instruction
Device
D21
97365.203
D20D23 D22
D11
76059.797
D10D13 D12
D21
21305.406
D20D23 D22