FB_BA_Pu1st
The template is used to control a single-stage pump with binary inputs and outputs. It mainly consists of the base class FB_BA_Mot1st, the switch-off delay DlyOff and the anti-blocking protection function Ablk.
The pump is switched on externally by the priorities of the command structure stCmd of the base class FB_BA_Mot1st or internally by the anti-blocking protection function Ablk. The external request via the priority "program" is switched off with a delay by the template DlyOff.
 | The initialization of the template takes place within the method FB_Init. |
Block diagram
Syntax
FUNCTION_BLOCK FB_BA_Pu1st EXTENDS FB_BA_Mot1st
VAR_INPUT
bAblkLock : BOOL;
END_VAR
VAR_INPUT CONSTANT
DlyOff : FB_BA_DlyOff;
Ablk : FB_BA_AntiBlocking;
END_VAR
VAR
PrioSwiPgm : FB_BA_PrioSwi_B04;
tonAblkLock : TON;
END_VAR
Inputs
Name | Type | Description |
|---|---|---|
bAblkLock | BOOL | A TRUE at this input variable interrupts the anti-blocking protection function Ablk. It should be prevented that pumps and valves get an anti-blocking protection pulse at the same time. |
Inputs CONSTANT
Name | Type | Description |
|---|---|---|
DlyOff | The template serves as a delayed pump shutdown. | |
Ablk | Anti-blocking protection. |
Variables
Name | Type | Description |
|---|---|---|
PrioSwiPgm | The priority switch PrioSwiPgm uses the switch-off delay DlyOff, the anti-blocking protection function Ablk and the priority program of the command structure stCmd of the base class FB_BA_Mot1st to determine the current switch value for the base class FB_BA_Mot1st. | |
tonAblkLock | TON | Switch-off delay of the anti-blocking protection pulse. |
Requirements
Development environment | Necessary function |
|---|---|
TwinCAT from v3.1.4024.35 | TF8040 | TwinCAT Building Automation from V5.2.1.0 |