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12. Appendix E: Profibus-DP Data and Diagnostics
12.2. Gateway Configuration Data
These data are transmitted to the Profibus-DP master upon gateway initialization exchanges. These exchanges
enable the Profibus-DP master to set up, configure, and diagnose each of the slaves. The TSX PBY 100 coupler
conducts these setup exchanges, but they are not documented in its
Implementation Manual. Please refer to the
general documentation about the Profibus-DP standard if you want further information about initialization
exchanges.
If you want to review the configuration data that have been exchanged during Profibus-DP slave setup, you may
use the SEND_REQ function in an application developed using PL7 PRO. You must then use the 16#0031
command code and specifically request the reading of the configuration data for the slave concerned (see
Implementation Manual of the TSX PBY 100 coupler).
The table below describes the structure and content of the response issued by the TSX PBY 100 coupler to a
read command of the LUFP7 gateway configuration data:
Bytes Name Description
0-1
Total length Total length of the configuration information, in bytes
2
Number of %IW Total size of the input data in the %IW area
3
Number of %QW Total size of the output data in the %QW area
4-5
%IW offset Offset of the input data blocks in the %IW area
6-7
%QW offset Offset of the output data blocks in the %QW area
8
Station Status Configuration of the slave's services (see Profibus-DP standard)
9
Watchdog Factor 1
10
Watchdog Factor 2
Slave timeout (see Profibus-DP standard):
Timeout = (Watchdog Factor 1) × (Watchdog Factor 2) × 10 ms
11
Min TSDR Minimum slave TSDR (see Profibus-DP standard)
12-13
PNO_Identifier Slave identification number (see Profibus-DP standard)
14
Group Flags Identifiers that characterize the slave's group (see Profibus-DP standard)
15
Address ID Slave's address on the bus
16
Modular slave Value = 16#00 / 16#01 if the slave is a compact / modular equipment device
17
Active slave Value = 16#00 / 16#01 if the slave is inactive/active on the network
18-19
Parameters size Size (a bytes) of the parameters data block for that slave
20-21
Configuration data size Size (b bytes) of the configuration data block for that slave
22-23
Size of the data used Size (c bytes) of the data block used for that slave
24-
(23+a)
Parameters Parameters data block for that slave
(24+a)-
(23+a+b)
Configuration data Configuration data block for that slave
(24+a+b)-
(23+a+b+c)
Data used Data block used for that slave