Integrator
- Block name
- ST call
- Library
- Version
- Description
- Inputs
- Outputs
- Function
- Application example

Integrator

Block name

B113_INTEGRATOR

ST call

PROGRAM TEST B113
  VAR
  BOOL1,BOOL2 :BOOL;
  REAL1,REAL2,REAL3: REAL;;
  FB: LIB.CORE.V1_0.B113_INTEGRATOR; 
 END_VAR
 FB(IN:=REAL1, ENABLED:=BOOL1,RESET:=BOOL2,OUT=>REAL2,LASTY=>REAL3);
END_PROGRAM

Library

LIB\CORE

Version

V1.0

Description

The block integrates the input signal in in time.

Inputs

Input	Type	Description	Default value
IN	REAL	Input value	0
ENABLED	BOOL	Enable of integration	False
RESET	BOOL	Input value reset	False

Outputs

Output	Type	Description
OUT	REAL	Actual integrated value
LASTY	REAL	Result before last reset

Function

The function reads input value in and adds it to the output every second. This gives, for example, wattseconds if there are watts on the input. The integrated value is reset after a rising edge at the reset input, and integrates if Enabled=true. Reset copies the last integrated value to the lasty output.

Application example

The block is used for calculation of cummulated values, such as total amount of water (m3) from flow value (m3/s), energy (Ws or kWh) from power (W), solar energy from sun (kWh/m2/day) from instant irradiation (W/m2) etc.

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