IAI ssel - Page 138

112
Part 2 Programs
 TAN (Tangent operation)
Command, declaration
Extension condition
(LD, A, O, AB, OB)
Input condition
(I/O, flag)
Command,
declaration
Operand 1 Operand 2
Output
(Output, flag)
Optional Optional TAN
Variable
number
Data ZR
[Function] Assign the tangent of the data specified in operand 2 to the variable specified in operand 1.
The output will turn ON when the operation result becomes 0.
The setting in operand 1 must be a real variable in a range of 100 to 199, 1100 to 1199, 300
to 399 or 1300 to 1399.
The unit of data in operand 2 is radian.
(Note 1)
Radian = Angle x   180
[Example 1] TAN 100 0.785398 Assign the tangent of 0.785398 (1) to variable 100.
[Example 2] LET 101 45
MULT 101 3.141592
DIV 101 180
TAN 100 *101
45 x   180 (radian)
(45 will be converted to radian and assigned to
variable 101.)
Assign the tangent of the content of variable 101 (1)
to variable 100.
 ATN (Inverse-tangent operation)
Command, declaration
Extension condition
(LD, A, O, AB, OB)
Input condition
(I/O, flag)
Command,
declaration
Operand 1 Operand 2
Output
(Output, flag)
Optional Optional ATN
Variable
number
Data ZR
[Function] Assign the inverse tangent of the data specified in operand 2 to the variable specified in
operand 1.
The output will turn ON when the operation result becomes 0.
The setting in operand 1 must be a real variable in a range of 100 to 199, 1100 to 1199, 300
to 399 or 1300 to 1399.
The unit of inverse tangent is radian.
(Note 1)
Radian = Angle x   180
[Example 1] ATN 100 1 Assign the inverse tangent of 1 (0.785398) to
variable 100.
[Example 2] LET 101 1
ATN 100 *101
Assign 1 to variable 101.
Assign the inverse tangent of the content of variable
101 (0.785398) to variable 100.