Ladder Logic Trigonometric Functions

The next step in math instruction is Trigonometric functions. These functions are very useful when trig functionality is need. These functions are more advanced than math instruction.

Definition

The following is a list of the Trigonometric Functions in SLC 500:

• ASN - Arc Sine
• ACS - Arc Cosine
• ATN - Arc Tangent
• COS - Cosine
• LN - Natural Log
• LOG - Log to the Base 10
• SIN - Sine
• TAN - Tangent

ASN - Arc Sine

Symbol

Definition

Takes the arc sine of a number and stores the result (in radians) in the destination

• Carry (C), Always resets
• Overflow (V), Sets if overflow or an unsupported input is detected
• Zero (Z), Sets if the result is Zero; otherwise resets;
• Sign (S), Sets if result is negative; otherwise resets;

ACS - Arc Cosine

Symbol

Definition

Takes the arc cosine of a number and stores the result (in radians) in the destination

• Carry (C), Always resets
• Overflow (V), Sets if overflow or an unsupported input is detected
• Zero (Z), Sets if the result is Zero; otherwise resets;
• Sign (S), Always resets

ATN - Arc Tangent

Symbol

Definition

Takes the arc tangent of a number and stores the result (in radians) in the destination

• Carry (C), Always resets
• Overflow (V), Sets if overflow; otherwise resets
• Zero (Z), Sets if overflow or an unsupported input is detected
• Sign (S), Sets if result is negative; otherwise resets;

COS - Cosine

Symbol

Definition

Takes the cosine of a number and stores the result in the destination.

• Carry (C), Always resets
• Overflow (V), Sets if overflow; otherwise resets
• Zero (Z), Sets if overflow or an unsupported input is detected
• Sign (S), Sets if result is negative; otherwise resets;

LN - Natural Log

Symbol

Definition

Takes the natural log of value in the source and stores it in the destination

• Carry (C), Always resets
• Overflow (V), Sets if overflow; otherwise resets
• Zero (Z), Sets if overflow or an unsupported input is detected
• Sign (S), Sets if result is negative; otherwise resets;

LOG - Log to the Base 10

Symbol

Definition

Takes the log base 10 of the value in the source and stores the result in the destination

• Carry (C), Always resets
• Overflow (V), Sets if overflow; otherwise resets
• Zero (Z), Sets if overflow or an unsupported input is detected
• Sign (S), Sets if result is negative; otherwise resets;

SIN - Sine

Symbol

Definition

Takes the sine of a number and stores the result in the destination.

• Carry (C), Always resets
• Overflow (V), Sets if overflow; otherwise resets
• Zero (Z), Sets if overflow or an unsupported input is detected
• Sign (S), Sets if result is negative; otherwise resets;

TAN - Tangent

Symbol

Definition

Takes the tangent of a number and stores the result in the destination

• Carry (C), Always resets
• Overflow (V), Sets if overflow; otherwise resets
• Zero (Z), Sets if overflow or an unsupported input is detected
• Sign (S), Sets if result is negative; otherwise resets;