Siemens 6AV6651-7KA01-3AA4 - S7-1200 + KTP400 Basic Starter Kit 6AV6651-7KA01-3AA4 Manual Do Utilizador
Códigos do produto
6AV6651-7KA01-3AA4
PID is easy
8.4 PID_3Step instruction
Easy Book
180
Manual, 03/2014, A5E02486774-AF
Table 8- 7
Data types for the parameters
Parameter and type
Data type
Description
Setpoint
IN
Real
Setpoint of the PID controller in automatic mode. (Default value: 0.0)
Input
IN
Real
A tag of the user program is used as the source of the process value.
(Default value: 0.0)
If you are using the Input parameter, you must set
If you are using the Input parameter, you must set
Config.InputPerOn = FALSE.
Input_PER
IN
Word
An Analog input is used as the source of the process value. (Default
value: W#16#0)
If you are using the Input_PER parameter, you must set
If you are using the Input_PER parameter, you must set
Config.InputPerOn = TRUE.
Actuator_H
IN
Bool
Digital position feedback of the valve for the high end stop
If Actuator_H = TRUE, the valve is at the high end stop and is no longer
If Actuator_H = TRUE, the valve is at the high end stop and is no longer
moved in this direction. (Default value: FALSE)
Actuator_L
IN
Bool
Digital position feedback of the valve for the low end stop
If Actuator_L = TRUE, the valve is at the low end stop and is no longer
If Actuator_L = TRUE, the valve is at the low end stop and is no longer
moved in this direction. (Default value: FALSE)
Feedback
IN
Real
Position feedback of the valve. (Default value: 0.0)
If you are using the Feedback parameter, you must set
If you are using the Feedback parameter, you must set
Config.FeedbackPerOn = FALSE.
Feedback_PER
IN
Int
Analog feedback of the valve position. (Default value: W#16#0)
If you are using the Feedback_PER parameter, you must set
If you are using the Feedback_PER parameter, you must set
Config.FeedbackPerOn = TRUE. Feedback_PER is scaled, based upon
the following tags:
•
•
Config.FeedbackScaling.LowerPointIn
•
Config.FeedbackScaling.UpperPointIn
•
Config.FeedbackScaling.LowerPointOut
•
Config.FeedbackScaling.UpperPointOut
Disturbance
IN
Real
Disturbance variable or pre-control value
ManualEnable
IN
Bool
Enables or disables the manual operation mode. (Default value:
FALSE):
•
•
A FALSE to TRUE edge activates "manual mode", while State = 4,
Mode remains unchanged.
As long as ManualEnable = TRUE, you cannot change the
As long as ManualEnable = TRUE, you cannot change the
operating mode using a rising edge at ModeActivate or use the
commissioning dialog.
•
A TRUE to FALSE edge activates the operating mode that is
assigned by Mode.
Note: We recommend that you change the operating mode using
ModeActivate only.
ManualValue
IN
Real
Process value for manual operation. (Default value: 0.0)
In manual mode, you specify the absolute position of the valve.
In manual mode, you specify the absolute position of the valve.
ManualValue is evaluated only if you are using OutputPer, or if position
feedback is available.