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Title: Instruction manual PROFINET interface
Date: Sept. 2020
Ver: 04AD_Red-y_V2.1
By: WES/HAE
Page 23
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30
Description: PID Select
Data type: UINT16
The controller consists of altogether 5 complete control parameter sets (see the corresponding
documentation). Three of these sets were defined by the manufacturer and cannot be changed by the
user (so-called manufacturer control parameter sets). Two sets can be changed at wish by the user (so-
called user control parameter sets).
One set is used for the current control. This setting can be saved in EEPROM and is available again with
the next activation. This set can be read, changed and re-written via ModBus access. Afterwards, the
controller immediately works with the modified set.
Function of the pre-defined control parameter sets:
Due to the flow end values, the correspondingly applied control valve and the pressure ratios, these sets
receive different values for the parameters P, I, D, F and N. We will discuss the function of the individual
parameters later on in this manual. The aim is to provide the controller with the following different
properties with the three sets:
Value
Type
0
User control parameter set 1 (default)
1
User control parameter set 2
2
Manufacturer control parameter fast:
Fast response time with the corresponding overshooting (fast response)
3
Manufacturer control parameter set medium:
Medium response time with a low overshooting tendency.
4
Manufacturer control parameter set slow:
Slow response time without overshooting (slow response)
Description: Enable SP (Set Point) Storage
Data type: UINT16
To activate the Set Point Storage, the controller mode (Output PDO: Device Setup)
has to be
in mode 1
(Digital).
Specifies whether the set value is automatically stored in the EEPROM. The service life of an EEPROM
depends on the number of write cycles. The guaranteed number of write cycles is 1 million. If the set
value is set every 10 minutes, the resulting service life is 19 years.
If the set value is set at significantly shorter intervals, automatic storage should be disabled.
0 = Manual save mode
1 = Automatic save mode
Description: Pressure PID Select
Data type: UINT16
PID set selection for the pressure controller