F_TRIG (Falling Edge Detector)
| Function name | F_TRIG_010 |
|---|---|
| Function version | 1.0 |
| Function state | stable |
| Compatibility with IEC61131-3 | compatible |
Graphic symbol :
Input / Output :
| Name | Belonging Group | Access | Types of data | Description |
|---|---|---|---|---|
| EN | Left Power Flow | IEC1131-3 enable input | ||
| CLK | Normale | R , RW | F | Variabile d`ingresso |
| Q | Normale | W , RW | F | Risultato dell`operazione |
| ENO | Right Power Flow | IEC1131-3 enable output |
Description :
The value of the variable Q is 1 (one), if it is noticed a state transition from ON to OFF of the link CLK. The value of the variable Q is 0 (zero) in all the other cases.
Important :
If from the first evaluation of the link CLK it is noticed the state of OFF, the programmable controller system (Qmove) will ignore that value until it will not notice the state of ON, at this point F_TRIG notices the negative transition and it will start to work normally.