Mitsubishi MELSEC iQ-F FX5 series Programming Manual page 450

Operation error
Error code Description
(SD0/SD8067)
The specified device value is -0, denormalized number, NaN (not a number), or .
3402
3405 A value specified in (s) is outside the range from -1.0 to 1.0.
For the radianangle conversion, refer to the DRAD(P) and DDEG(P) instructions.
(Page 451 Converting single-precision real number angle to radian, Page 452 Converting single-precision
real number radian to angle)
7 APPLICATION INSTRUCTION
448
7.7 Real Number Instruction