Operators for limit-based switching
The digital outputs of connected I/O systems can be switched depending on measured values or states. In this way, heat pumps or relays, for example, can be controlled by specifying a defined output. A specifically adjustable tolerance (hysteresis) prevents the digital outputs from switching even with minor power fluctuations. In addition, the choice of operator can be used to specify whether the tolerance applies to falling below and/or exceeding the defined value.
Operator | Tolerance (hysteresis), example | Explanation |
|---|---|---|
Greater than or equal to (>=) | 5% | No switching occurs within the range of 100% to 105% of the defined value. |
Less than or equal to (<=) | 5% | No switching occurs within the range of 95% to 100% of the defined value. |
Equal to | 5% | No switching occurs within the range of 97.5% to 102.5% of the defined value. |