Input filter, Special parameterization functions, Halved inputs mode – Burkert Type 8640 User Manual
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Configurationandparameter
settingsforPROFIBUSDP
9.3.3.
Halved inputs mode
In halved inputs mode every second input is skipped. Only the inputs 1, 3, 5, ... are transmitted, so for 32 physi-
cally existing inputs only 2 bytes are needed.
Extension module
inputs
16
15
14
13 12 11 10
9 8 7
6
5 4 3
2
1
Power supply earth
Power supply +24 V
Inputs
8
7
6
5
4
3
2
1
16
15
14
13 12 11 10
9 8 7
6
5 4 3
2
1
Power supply earth
Power supply +24 V
Inputs
8
7
6
5
4
3
2
1
EME 32
Input module (e.g. 16-fold)
Input module (e.g. 16-fold)
Byte 1
Byte 0
Figure 22:
Halved inputs mode
9.4.
Input filter
The input filter suppresses disturbances which affect the input modules. Therefore the activation of this input filter
is always recommended.
When the filter is activated only signals are recognized which have a duration of ≥ 2 ms. The regulations
contained in EMC legislation require that the input filter be activated.
9.5.
Special parameterization functions
Parameter 0x0E : Delete EEPROM
In order to delete a default setting stored in the EEPROM for the configuration the code 0x0E (14 decimal) must
be transmitted as user data (Hex parameter).
Parameter 0x0F: Modification of the default setting for the configuration
If the default values are used in configuring the valve terminal, then the maximum values, i.e. 4 bytes inputs and
3 bytes outputs, are set and added to the process image.
In order to select another default setting the following user data (Hex parameters) must be set.
Byte No.
Description
0
0 x 0F; parameter for the modified default setting
1
Number of identifiers to follow (max. 7)
2
Identifier 1
3
Identifier 2
...
8
Identifier 7
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Type 8640