Siemens SPS starter kit 6ED1057-3BA00-0AA8 12 Vdc, 24 Vdc 6ED1057-3BA00-0AA8 Hoja De Datos
Los códigos de productos
6ED1057-3BA00-0AA8
Reference material
5.3 Special functions
LOGO!Soft Comfort Online Help
Operating Instructions, 06/2014
Operating Instructions, 06/2014
299
5.3.5.3
Description of the individual parameters
Controller
parameters
Portrayed in LOGO!
Possible value
range in the
LOGO!
Mn
Manipulated variable
at the time n
Output of the PI controller block
0 to 1000
kP
Gain of the P part
kI
kI
Gain of the I part
In the LOGO!, the parameter KC applies as an increase for
the I part and the P part of the controller equally
Should you enter KC=0, then the P part of the controller
Should you enter KC=0, then the P part of the controller
switches off. In this special case, k is automatically set to 1
for the I part.
If KC = 0: kP = 0 and kI = 1
If KC = 0: kP = 0 and kI = 1
If KC ≠ 0: kP = kI = KC
0.00 to 99.99
T
S
Sampling time,
duration of a time
slice
Fixed
500 ms
T
I
Integral time
Parameter T
I:
if you set this parameter to 99.59 min, then
you switch off the I part of the controller.
00:01 min to
99.59 min
e
n
Loop error at the
time n; generally
applies:
E = SP - PV
Refer to SP and PV
"
SP
The parameter SP is the set-value assignment w. For this
parameter you can use the analog output of a different
special function.
-10000 to +20000
PV
PV is the process value x and is calculated as follows:
PV = analog value on input * gain) + offset.
You can connect the input for example by means of an
analog input with a PT100 sensor.
"
The gain parameter has an effect on PV
0.0 to 10.0
The offset parameter has an effect on PV
-10000 to +20000
PV is restricted by the parameters Min. and Max.
In each case:
10000 to +20000
The Dir parameter gives the action direction of the
controller.
Positive means: If set value > process value then the
Positive means: If set value > process value then the
process value is increased; if set value < process value
then the process value is reduced.
Negative means: If set value > process value then the
Negative means: If set value > process value then the
process value is reduced; if set value < process value then
the process value is increased.
Example, heat regulation: if the set value is greater than
Example, heat regulation: if the set value is greater than
the process value (room is too cold), the manipulated
variable increases the process value.
- or +
Refer to the PI controllers - description of special function for more details (for example,
switching from manual to automatic mode, parameter sets, etc.).