Data library
8.7 Formats
3WL/3VL circuit breakers with communication capability - PROFIBUS
System Manual, 03/2011, A5E01051353-02
257
8.7.3 Special data formats
Special data formats are used where the inflexible standard formats cannot be used. The
special data formats are used, for example, with binary-coded or complex data points. If a
special data format has been used with a data point, this is indicated in the first and second
part of this chapter in the format column with Format (X). The X represents a consecutive
number of the special data formats used, described below. In the majority of cases, the X in
the format agrees with the data point number to simplify the search.
In the case of bit interpretations, the meaning is always to be seen with a high-active signal.
The table below shows the format (7) for the data in the cyclic profile of PROFIBUS.
Table 8- 42 Format (7) cyclic data in DP
Byte Meaning
0 Assignment (data point number) of the 1st data block in the cyclic message frame
2 Assignment (data point number) of the 2nd data block in the cyclic message frame
4 Assignment (data point number) of the 3rd data block in the cyclic message frame
6 Assignment (data point number) of the 4th data block in the cyclic message frame
8 Assignment (data point number) of the 5th data block in the cyclic message frame
10 Assignment (data point number) of the 6th data block in the cyclic message frame
12 Assignment (data point number) of the 7th data block in the cyclic message frame
14 Assignment (data point number) of the 8th data block in the cyclic message frame
16 Assignment (data point number) of the 9th data block in the cyclic message frame
18 Assignment (data point number) of the 10th data block in the cyclic message frame
20 Assignment (data point number) of the 11th data block in the cyclic message frame
22 Assignment (data point number) of the 12th data block in the cyclic message frame
24 Assignment (data point number) of the 13th data block in the cyclic message frame
26 Assignment (data point number) of the 14th data block in the cyclic message frame
The table below shows the format (10) for the IP addresses that consist of four digits from
0 to 255 each separated by a dot, e.g. 192.168.121.101.
Table 8- 43 Format (10) IP address BDA PLUS
Byte Meaning
0 unsigned int: 1. sub-IP address X._._._
1 unsigned int: 2. sub-IP address _.X._._
2 unsigned int: 3. sub-IP address _._.X.__
3 unsigned int: 4. sub-IP address _._._.X
4 Reserved
The table below shows the format (14) for PROFIBUS write protection. A hardware input on
COM15 and COM10 or COM 20 deactivates write protection via PROFIBUS.
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