average / averageL

 Function Block A function block groups an algorithm and a set of private data. It has inputs and outputs. - Calculates the average of signal samples.

Inputs

Input	Data Type	Range	Unit	Default	Description
RUN	BOOL				Enabling Enable signal for the drive, Hardware-Enable with 24V signal to X8, Software-Enable command by setup Software, fieldbus or permanently set. Both are required for enabling the drive. command.
XIN	REAL				Input signal.
N	DINT				Number of samples stored for average calculation. Cannot exceed 128.

Outputs

Output	Data Type	Range	Unit	Description
XOUT	REAL			Average of the stored samples. averageL has LREAL arguments.

Remarks

• Average is calculated according to the number of stored samples.
  • This can be less than N when the block is enabled.
    • The N input (or the number of samples) is taken into account only when the RUN input is FALSE.
  • By default, the number of samples is 128.
• RUN must be reset New start of the microprocessor. after a change in the number of samples.
  • Cycle the RUN input when you first call this function A function calculates a result according to the current value of its inputs. A function has no internal data and is not linked to declared instances.; this clears the default.

FBD Language Example

FFLD Language Example

• In the FFLD Language, the input rung is the RUN command.
  • The output rung keeps the state of the input rung.
  • ENO has the same value as RUN.

IL Language Example

(* MyAve is a declared instance of AVERAGE function block *)
Op1: CAL MyAve (RUN, XIN, N)
     FFLD  MyAve.XOUT
     ST  XOUT

ST Language Example

(* MyAve is a declared instance of AVERAGE function block. *)
MyAve (RUN, XIN, N);
XOUT := MyAve.XOUT;

See Also

• derivate
• hyster
• integral
• lim_alrm
• stackint