AS-i/PROFIBUS Gateway
Profibus-DP
Subject to reasonable modifications due to technical advances.
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Parameterization of the Profibus-DP-Slave
The parameters needed by the gateway are coded in the user-parameters. They con-
tain one byte to select the professional mode, the AS-i configuration data and AS-i pa-
rameters for all the AS-i slaves and the statements about user memory bytes to be
read and to be written.
The fields user memory statement and AS-i configuration data and AS-i (startup-) pa-
rameters are optional. However the order of the fields is stipulated. Therefore the fol-
lowing four combinations are possible:
1.
2.
3.
4.
In the cases 1 and 2 no AS-i configuration data and AS-i (startup-) parameters are
stated in the user parameter telegram. In these cases the AS-i configurations stored
in the EEPROM of the AS-i/PROFIBUS Gateway are used. So AS-i can be projected
using the AS-i Control Tools or the push buttons on the device before Profibus is put
into operation.
The fields of the Profibus parameter telegram are constructed as follows:
• user memory statement (4 bytes)
Byte 0: Start address of the user memory window in the input data telegram
(read user memory)
Byte 1: Length of the user memory window in the input data telegram
20
hex
user memory
statement
(4 bytes)
AS-i configuration data
and AS-i (startup-)
parameters of
AS-i circuit 1 (62 bytes)
AS-i configuration data
and AS-i (startup-)
parameters of
AS-i circuit 2 (62 bytes)
20
hex
20
hex
user memory
statement
(4 bytes)
20
hex
user memory
statement
(4 bytes)
AS-i configuration data
and AS-i (startup-)
parameters of
AS-i circuit 1 (62 bytes)
20
hex
user memory
statement
(4 bytes)
AS-i configuration data
and AS-i (startup-)
parameters of
AS-i circuit 1 (62 bytes)
AS-i configuration data
and AS-i (startup-)
parameters of
AS-i circuit 2 (62 bytes)