====== Integrator ======

{{:en:mervis-ide:35-help:b113.png}}

===== Block name =====

B113_INTEGRATOR

===== ST call =====

<code st-iec>
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
</code>

===== 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 =====

{{:en:mervis-ide:35-help:b113_example.png}}

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.