Siemens SIDOOR ATD4 W Series - PROFIBUS Communication

5.5.2.4 PROFIBUS communication
Parameter assignment
The DP master transfers parameters during initialization of the DP slave. This includes the
transfer of standard parameters and speci󹪝c SIDOOR parameters for the device. The speci󹪝c
parameters are written in the GSD 󹪝le. No user data can be exchanged without initialization.
The DP master sends the parameters to the DP slave in a set parameters telegram. The DP slave
answers with a short acknowledgment.
The set parameters telegram consists of user data with 7 to 244 bytes. The 󹪝rst 7 bytes of the
parameters are bindingly speci󹪝ed in the standard. Bytes 8 to 10 are permanently written in DP-
V1, and are not used here. The subsequent bytes are manufacturer-speci󹪝c. Another 8 bytes are
reserved for this with the PROFIBUS module.
SIDOOR-speci󹪝c parameters
The SIDOOR internal communication channel (internal bus) can be con󹪝gured with the
following parameters:
• Data communication
• Baud rate
• Slave address
• Telegram type
• Cycle time
Controllers
5.5 Relay and 󹪝eldbus interfaces
ATD4xxW for industrial applications
System Manual, 06/2022, A5E51901827B AA 145