The Threshold Switch analyzes an analog input value using two threshold values, and switches a digital output accordingly.
The two threshold values form a hysteresis, which prevents frequent toggling of the output when the analog value fluctuates around a threshold value.
Typical applications of the function block are fill level control, heating, ventilation and air conditioning technology, etc.
Table of Contents
Inputs↑
| Abbreviation | Summary | Description | Value Range |
|---|---|---|---|
| AI | Input | Analogue Input | ∞ |
Outputs↑
| Abbreviation | Description |
|---|---|
| Q | Output |
Parameters↑
| Abbreviation | Summary | Description | Value Range | Default Value |
|---|---|---|---|---|
| Von | On-value | Input parameter - On-value of the threshold switch | ∞ | 5 |
| Voff | Off value | Input parameter - Off-value of the threshold switch | ∞ | 1 |
| Rem | Remanence input | Remanence input: If active, the function block retains its previous state after a Miniserver reboot. | - | 0 |
Function↑
Von above Voff: The output (Q) is activated as soon as the value of the input (AI) exceeds the threshold (Von) and deactivated when (AI) falls below the threshold (Voff):
Von below Voff: The output (Q) is deactivated as soon as the value of the input (AI) exceeds the threshold (Voff) and activated when (AI) falls below the threshold (Von):
