PROFIBUS DP-Master

Getting started / Configuration 57/315
4.2.3.1 Bus_Para_Len
This parameter is calculated as the length of the bus parameter structure in bytes including the field
itself.
4.2.3.2 FDL_Add
This parameter is used for defining the address of the Profibus DP master itself.
Note: Configuration of addresses in a Profibus network must be performed in such a way that
all addresses are used uniquely. No addresses may appear twice or more often within the
Profibus network!
Note: Do not use the address 0 as the master address although this would both be possible
and allowed because this address is often used by configuration and diagnosis devices.
Therefore, it is a good idea to choose a non-zero address for the Profibus DP master.
4.2.3.3 Baud_rate
This parameter contains the baud rate (i.e. the transmission speed of data signals) used by all stations
of the Profibus network in a coded manner. This value must be set to the same value at all slave
stations within the network. If this is not the case, all stations with deviating transmission speed setting
will not operate correctly.
The coding is as follows:+
Symbolic Name Baud rate Value
PROFIBUS_DL_DATA_RATE_96 9,6 kBits/s 0
PROFIBUS_DL_DATA_RATE_19_2 19,2 kBits/s 1
PROFIBUS_DL_DATA_RATE_93_75 93,75 kBits/s 2
PROFIBUS_DL_DATA_RATE_187_5 187,5 kBits/s 3
PROFIBUS_DL_DATA_RATE_500 500 kBits/s 4
PROFIBUS_DL_DATA_RATE_1500 1500 kBits/s 6
PROFIBUS_DL_DATA_RATE_3000 3000 kBits/s 7
PROFIBUS_DL_DATA_RATE_6000 6000 kBits/s 8
PROFIBUS_DL_DATA_RATE_12000 12000kBits/s 9
PROFIBUS_DL_DATA_RATE_31_25 31.25kBits/s 10
PROFIBUS_DL_DATA_RATE_45_45 45.45 kBits/s 11
PROFIBUS_DL_DATA_RATE_AUTO
Table 26: Supported Baud Rates
Auto-detection mode.
This option is currently not
supported.
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PROFIBUS DP-Master |
DOC061001API12EN | Revision 12 | English | 2010-12 | Released | Public © Hilscher, 2006-2010