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ABB i-bus
KNX
Parameters
PID Controller (PID)
The controller calculates the output value from the difference between the Setpoint and the Actual Value.
The control parameters are proportional coefficient, integral time and derivative time.
Inputs
No. DPT
1
2
3
4
5
6
Outputs
No. DPT
1
128 2CDC508198D0211 Rev. A | AC/S 1.x.1
Abbr.
Numerical,
S
1 byte or higher
Same as input 1
W
Numerical,
PF
1 byte or higher
Numerical,
IZ
1 byte or higher
Numerical,
DZ
1 byte or higher
1 bit
R
Abbr.
Numerical,
A
1 byte or higher
Name
Visible
Setpoint
Always
Actual value
Always
Proportional
Parametrizable
coefficient
Integral time
Parametrizable
Derivative time
Parametrizable
Reset
Always
Name
Visible
Output
Always
Description
Target value of controller, e.g.
target room temperature
Current measured value
Controller gain
Integral time in [s]; typical value
range: 60...900 s
C
= 1/Integral Time
i
Derivative time in [s]; typical
value range: 1...10 s
C
= Derivative Time
d
Clears the integral element in the
controller
As long as R = 0 the integral
value is set to 0.
Description
Control value, no unit
Typically 1 byte unsigned
(0...255)
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