Mitsubishi MELSEC iQ-F FX5 series Programming Manual page 421

Operation error
Error code Description
(SD0/SD8067)
The specified device value is -0, denormalized number, NaN (not a number), or .
3402
The value stored in specified device is outside the following range

-126
0, 2 |specified device value|<2
128
7 APPLICATION INSTRUCTION
7.7 Real Number Instruction
7
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