Statement List (STL) - DCE FEL ČVUT v Praze

Floating-Point Math Instructions
8.4.5 SIN Generate the Sine of Angles as Floating-Point Numbers
(32-Bit)
Format
SIN
Description of instruction
Result
Example
SIN (generate the sine of angles as floating-point numbers, 32-bit, IEEE-FP)
calculates the sine of an angle specified as a radian measure. The angle must be
present as a floating-point number in ACCU 1. The result is stored in accumulator 1.
The instruction influences the CC 1, CC 0, OV, and OS status word bits.
The contents of accumulator 2 (and the contents of accumulator 3 and accumulator
4 for CPUs with four ACCUs) remain unchanged.
The result in ACCU 1 is CC 1 CC 0 OV OS Note
+qNaN 1 1 1 1
+normalized 1 0 0 -
+denormalized 0 0 1 1 Overflow
+zero 0 0 0 -
-zero 0 0 0 -
-denormalized 0 0 1 1 Underflow
-normalized 0 1 0 -
-qNaN 1 1 1 1
STL Explanation
L MD10 //The value from memory double word MD10 is loaded into ACCU 1. (This value
must be in the floating-point format.)
SIN //Calculate the sine of the floating-point number (32-bit, IEEE-FP) in ACCU
1. Store the result in ACCU 1.
T MD20 //Transfer the result from ACCU 1 to the memory double word MD20.
Statement List (STL) for S7-300 and S7-400 Programming
8-14 A5E00706960-01