rand

 Function Block A function block groups an algorithm and a set of private data. It has inputs and outputs. - Returns a pseudo-random integer value between 0 (zero) and (base - 1).

Inputs

Input	Data Type	Range	Unit	Default	Description
base	DINT	1 to 2147483647	N/A	No default	The number of possible outcomes. Example: When base is 5, there are 5 possible outcomes: 0,1,2,3,4.

Outputs

Output	Data Type	Range	Unit	Description
Return Value	DINT	0 (zero) to (base - 1)	N/A	The generated pseudo-random number.

Remarks

• rand uses a low-quality, but fast number generation algorithm.
  • It is sufficient for small bases and where security is not a concern.
• There is no way to seed the random number generator.
  • It is possible to receive the same pattern of generated numbers after the controller reboots.

FBD Language Example

Not available.

FFLD Language Example

Not available.

IL Language Example

Not available.

ST Language Example

dieValue := 1 + rand(6);