Parameter setting
6-4
BA2131EN
The following table shows the assignment of the addresses:
PROFIBUS-DP station address
Mapping to code C0009 LECOM unit address
1-2
No (master addresses)
3-99
Yes (3-99)
100-125
Yes (C0009= 2)
126 (Lenze setting )
Yes (C0009= 1 )
6.1.5
Baud rate
Baud-rate settings are not required. The 2131 fieldbus module is automatically adjusted to the baud
rate of the master.
6.1.6
Master settings
The master needs a unit-description file (unit master-data file) for operation with PROFIBUS-DP. The
diskette provides the following files:
File name
Meaning
L_AR00AA.GSD
Unit master-data file to DIN 19245 T3
LE00AATD.200
Controller master data file (type file) for Simatic-S5 COM-ET200 V4.X (IM308B)
LE00AAAX.200
Controller master data file (type data) for Simatic-S5 COM-ET200 V5.X (IM308C)
You also have to set:
Function
Setting (depends on the master type)
Baud rate
The 2131 module is equipped with an automatic baud-rate detection
Communication profile
PROFIBUS-DP DIN E 19245 T3
Slave-station address
126 (Lenze setting)
Value the same as in controller parameter C0009 (see chapter 6.1.4 “Bus
address/station address“).
DP-configuration data (configuration)
see chapter 6.2
PNO-identification number
00AA
hex
DP user-data length
see chapter 6.2
6.2
PROFIBUS-DP configuration
The PROFIBUS-DP user data length is determined during the DP initialization phase (configuration).
You can select from 4 fixed lengths.
The user data lengths for input data and output data must be the same.
For simplification we use the following abbreviations:
l
PIW:
Process input word (process data from the controller to the master)
l
POW:
Process output word (process data from the master to the controller)
The 4 selectable user data lengths are:
l
2 words process data; label 71
hex
(113)
PIW/POW 1
PIW/POW 2
Byte 1
Byte 2
Byte 3
Byte 4
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