FUNCTION_BLOCK RAMP_REAL
Limits the slope of a value to a certain value
The function block is similar to RAMP_INT with the difference that the inputs IN, ASCEND, DESCEND and the output OUT are of the type REAL. RAMP_REAL takes more computing time but calculates more precisely than RAMP_INT.
Note
A reset of the function block ( RESET = TRUE) stops the calculation and the last output value OUT is maintained. So if afterwards the ramp gets restarted by RESET = FALSE, it will start with this last output value!
InOut:
|
Scope |
Name |
Type |
Comment |
|
Input |
IN |
REAL |
Input value |
|
ASCEND |
REAL |
Maximum positive slope |
|
|
DESCEND |
REAL |
Maximum negative slope (non-negative!) |
|
|
TIMEBASE |
TIME |
Reference for ASCEND/DESCEND : t#0s: ASCEND/DESCEND defined per call Else : ASCEND/DESCEND defined per specified time |
|
|
RESET |
BOOL |
Resets the function block |
|
|
Output |
OUT |
REAL |
Fnction value with limited slope |
