Yaskawa MP900 Series Machine Controller New Ladder Editor - Manual (Page 103)

1.5 Basic Function Instructions
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1.5.7 ARC TANGENT Instruction (ATAN)
„ Outline
The ATAN instruction calculates the arc tangent of integer or real number data as the opera-
tion result.
The input units and output results for integer and real number data are different. This
instruction cannot be used for double-length integer data.
Integer Type Data
This instruction can be used between -327.68 and 327.67 degrees. The Source is used as the
input (1
= 0.01 degrees) and the operation result is stored in the Dest. Upon output, the oper-
ation result is multiplied by 100.
Real Number Type Data
The Source is used as the input (unit = degrees) and the arc tangent of the input is stored in
the Dest.
This instruction cannot be used for integer type and double-length integer data.
„ Format
„ Parameter
Parameter Name Setting
Source
(Input) • Any integer type and real number type register
• Any integer type and real number type register with subscript
• Subscript register
• Constant
Dest
(Output) • Any integer type and real number type register (except for #
and C registers)
• Any integer type and real number type register with subscript
(except for # and C registers)
• Subscript register
Symbol: ATAN
Full Name: Arc Tangent
Category: FUNCTION
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