Mitsubishi Electric MELSEC iQ-R Series Programming Manual page 784

Processing details
• These instructions calculate the angle based on the tangent data in the device specified by (s), and store the operation
result in the device number specified by (d).
(s)+1 (s)
-1
TAN (
Single-precision real number
• The angle (operation result) is stored in radians in the device specified by (d).
• If the operation result is -0 or an underflow occurs, the operation result turns out to 0.
• When an input value is set using the engineering tool, a rounding error may occur. Refer to the following for the precautions
on setting input values using the engineering tool.
Page 49 Precautions
Operation error
Error code Description
(SD0)
The value input to (s) is -0, a subnormal number, NaN (not a number), or .
3402H
For the angleradian conversion, refer to the RAD(P) and DEG(P) instructions.
Page 807 RAD(P)
Page 809 DEG(P)
7 APPLICATION INSTRUCTIONS
782
7.9 Real Number Instructions
(d)+1
)
Single-precision real number
(d)