| Type |
Function module |
| Input X |
REAL (input) |
| Output Q |
BOOL (X ascending = TRUE) |
| TU |
BOOL (TRUE if the input X increases) |
| TD |
BOOL (TRUE if input X reduces) |
| D |
REAL (deltas of the input change) |
|
TREND monitors the input X and time at the output Q to see if X increases (Q = TRUE) or X decrease (Q = FALSE). If X does not change, Q remains at its last value. If X increases, the output TU gets for one cycle to TRUE and at the output D the result X - LAST_X is displayed. If X is less than LAST_X so TD gets TRUE for one cycle and the output D is LAST_X - X passed. LAST_X is an internal value of the module and is the value of X in the last cycle. |
