Sine (SIN)

This table lists the controllers and applications that support this instruction.
Architecture
Standard applications
Safety applications
CompactLogix 5370, ControlLogix 5570, Compact GuardLogix 5370, and GuardLogix 5570 controllers
Yes
No
CompactLogix 5380, CompactLogix 5480, ControlLogix 5580, Compact GuardLogix 5380, and GuardLogix 5580 controllers
Yes
Yes
When enabled, the SIN instruction takes the sine of the Source value (in radians) and stores the result in the Destination.
Available Languages
Ladder Diagram
SIN_LD_avail_v31
Function Block Diagram
Function Block Diagram supports these elements:
FBD Block
FBD Function
TIP:
FBD Function is applicable to CompactLogix 5380, CompactLogix 5480, ControlLogix 5580, Compact GuardLogix 5380, and GuardLogix 5580 controllers only.
Structured Text
This instruction is not available in structured text.
TIP:
Use SIN as an operator in an expression to compute the same result. Refer to Structured Text Syntax for more information on the syntax of expressions and assignments within structured text.
Operands
Ladder Diagram
Operand
Data Type
CompactLogix 5370, ControlLogix 5570, Compact GuardLogix 5370, and GuardLogix 5570 controllers
Data Type
CompactLogix 5380, CompactLogix 5480, ControlLogix 5580, Compact GuardLogix 5380, and GuardLogix 5580 controllers
Format
Description
Source
SINT
INT
DINT
REAL
SINT
INT
DINT
LINT
USINT
UINT
UDINT
ULINT
REAL
LREAL
Immediate
tag
Value to convert to sine.
Destination
SINT
INT
DINT
REAL
SINT
INT
DINT
LINT
USINT
UINT
UDINT
ULINT
REAL
LREAL
tag
Tag to store the result of the instruction.
Function Block Diagram
FBD Block
Operand
Type
Format
Description
SIN tag
FBD_MATH_ADVANCED
tag
SIN structure
FBD_MATH_ADVANCED Structure
Input Parameter
Data Type
Description
EnableIn
BOOL
Enable input. If false, the instruction does not execute and outputs are not updated.
Default is true.
Source
REAL
Input to the trigonometric instruction.
Output Parameter
Data Type
Description
EnableOut
BOOL
Indicates if the instruction executed without fault when it was enabled.
Dest
REAL
Result of the instruction.
FBD Function
TIP:
FBD Function is applicable to CompactLogix 5380, CompactLogix 5480, ControlLogix 5580, Compact GuardLogix 5380, and GuardLogix 5580 controllers only.
Operand
Data Type
CompactLogix 5380, CompactLogix 5480, ControlLogix 5580, Compact GuardLogix 5380, and GuardLogix 5580 controllers
Description
Source
SINT
INT
DINT
LINT
USINT
UINT
UDINT
ULINT
REAL
LREAL
Value to convert to sine.
Output Operand (Right Pin)
Data Type
CompactLogix 5380, CompactLogix 5480, ControlLogix 5580, Compact GuardLogix 5380, and GuardLogix 5580 controllers
Description
Dest
REAL
LREAL
Result of the function.
Operator Aspects
The SIN operator can be used in various expressions. Similarly, the SIN function is invoked in Structured Text statements. Both applications of SIN return a floating point result containing the sine of the Source. Depending on the context, this value may then be type converted if appropriate.
Description
The SIN instruction takes the sine of the Source value (in radians) and stores the result in the Destination.
The SIN operator or function computes the sine of Source and returns the floating point result. The resulting value is always greater than or equal to -1 and less than or equal to 1.
Affects Math Status Flags
Controllers
Affects Math Status Flags
CompactLogix 5380, CompactLogix 5480, ControlLogix 5580, Compact GuardLogix 5380, and GuardLogix 5580 controllers
Conditional, see Math Status Flags.
CompactLogix 5370, ControlLogix 5570, Compact GuardLogix 5370, and GuardLogix 5570 controllers
Yes
Major/Minor Faults
None specific to this instruction. See Index Through Arrays for array-indexing faults.
Execution
Ladder Diagram
Condition/State
Action Taken
Prescan
N/A.
Rung-condition-in is false
Set Rung-condition-out to Rung-condition-in.
Rung-condition-in is true
Set Rung-condition-out to Rung-condition-in.
Dest = sine value of the Source.
Postscan
N/A
Function Block
Condition/State
Action Taken
Prescan
N/A
Tag.EnableIn is false.
Set EnableOut to EnableIn.
Tag.EnableIn is true
Dest = sine value of the Source.
If overflow occurs
Clear EnableOut to false.
else
Set EnableOut to true.
Instruction first scan
N/A
Instruction first run
N/A
Postscan
N/A
FBD Function
TIP:
FBD Function is applicable to CompactLogix 5380, CompactLogix 5480, ControlLogix 5580, Compact GuardLogix 5380, and GuardLogix 5580 controllers only.
Condition/State
Action Taken
Prescan
N/A
Normal Scan
Dest = sine value of the Source.
Instruction first run
N/A
Instruction first scan
N/A
Postscan
N/A
Example
Ladder Diagram
Function Block Diagram
FBD Block
FBD Function
Structured Text
REAL_dest := SIN(REAL_src);
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