LIM_ALRM
Hysteresis on a real value for high and low limits.
A hysteresis is applied on high and low limits. The hysteresis delta used for either the high or low limit is equal to the EPS parameter.
Arguments | ||
|---|---|---|
H | REAL | High limit value |
X | REAL | Input: any real value |
L | REAL | Low limit value |
EPS | REAL | Hysteresis value (must be greater than zero) |
QH | BOOL | "high" alarm: TRUE if X above high limit H |
Q | BOOL | Alarm output: TRUE if X out of limits |
QL | BOOL | "low" alarm: TRUE if X below low limit L |
Example timing diagram
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