544 Rockwell Automation Publication 1756-RM003N-EN-P - October 2011
Chapter 14 Trigonometric Instructions (SIN, COS, TAN, ASN, ASIN, ACS, ACOS, ATN, ATAN)
Example: Calculate the arc tangent of value and place the result in result.
Relay Ladder
Structured Text
result := ATAN(value);
Function Block