PUMP_PID_VISU_PH
Visualization Faceplate for the Function Block PUMP_PID.
Colors of the variables
| Color |
Meaning |
| white |
Actual FALSE and should be FALSE in normal operation |
| green |
Actual TRUE and should be TRUE in normal operation |
| yellow |
Actual FALSE but should be TRUE in normal operation |
| red |
Actual TRUE but should be FALSE in normal operation |
Visualization parameters
| Variable element |
Access |
Way of access |
Description (all elements refer to the Function Block instance, replaced for the placeholder $FB$) |
| EN |
R/W |
Toggle |
To enable the Function Block with the true value. |
| SET_VALUE |
R/W |
Numpad – value 0.0 to 100.0 |
Set value of the process variable in terms of percentage. |
| ACTUAL_VALUE |
R/W |
Numpad – value 0.0 to 100.0 |
Actual value of the process variable in terms of percentage. |
| KP |
R/W |
Numpad – value 0.0 to 100.0 |
Proportional gain of the PID. |
| TN |
R/W |
Numpad – value 0.0 to 100.0 |
Integral time of the PID in terms of seconds. |
| TD |
R/W |
Numpad – value 0.0 to 100.0 |
Derivative time of the PID in terms of seconds. |
| PID_FREEZE |
R/W |
Toggle |
For the TRUE value the setpoint to the PID block is frozen. Actual value is then attached to the setpoint. |
| PID_MAX_LIMIT |
R/W |
Numpad – value 0.0 to 100.0 |
Limit for the maximum PID Output. |
| PID_MIN_LIMIT |
R/W |
Numpad – value 0.0 to 100.0 |
Limit for the minimum PID Output. |
| PUMP_RUNTIME_RESET |
R/W |
Toggle |
TRUE value of this variable resets the actual runtime to Zero value. |
| DONE |
R |
|
Execution finished when output DONE = TRUE. |
| ERR |
R |
|
Error occurred during execution when output ERR = TRUE. |
| ENO |
R |
|
Error code. |
| PID_OUT |
R |
|
PID output after the manipulation in terms of percentage. |
| PID_DEVIATION |
R |
|
Deviation of Set value from actual value. It is also known as PID error. |
| PID_SPEED_REF |
R |
|
Speed reference as a correction to the main speed reference, calculated by the PID - in the range of 0 to 20000. |
| MAX_LIMIT_REACHED |
R |
|
Indicates if the PID output touches the MAXIMUM limit. |
| MIN_LIMIT_REACHED |
R |
|
Indicates if the PID output touches the MINIMUM limit. |