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.