Function Block - Hysteresis detection.
Inputs
|
Input |
Data Type |
Range |
Unit |
Default |
Description |
|---|---|---|---|---|---|
|
XIN1 |
REAL |
|
|
|
First input. |
|
XIN2 |
REAL |
|
|
|
Second input. |
|
EPS |
REAL |
|
|
|
Hysteresis. |
Outputs
|
Output |
Data Type |
Range |
Unit |
Description |
|---|---|---|---|---|
|
Q |
BOOL |
|
|
Detected hysteresis: TRUE if XIN1 becomes greater than XIN2+EPS and is not yet below XIN2-EPS. |
Remarks
- The hysteresis is detected on the difference of XIN1 and XIN2 signals.
FBD Language Example
FFLD Language Example
- In the FFLD Language, the input rung (EN) is used for enabling the block.
- The output rung is the Q output.
- The block is not called if EN is FALSE.
IL Language Example
(* MyHyst is a declared instance of HYSTER function block *)
Op1: CAL MyHyst (XIN1, XIN2, EPS)
FFLD MyHyst.Q
ST Q
ST Language Example
(* MyHyst is a declared instance of HYSTER function block. *)
MyHyst (XIN1, XIN2, EPS);
Q := MyHyst.Q;
See Also
