
4 DP Master Mode with a PROFIBUS CP in a SIMATIC S7-300
A−107
S7-CPs for PROFIBUS Configuring and Commissioning
Release 09/2011
C79000−G8976−C181−05
4.8 Changing the Mode of the DP Master
DP Modes
The following modes of the DP master are described in greater detail in
Section 4.3.2:
OFFLINE
STOP *)
CLEAR
RUN
*) Note: With newer modules (refer to the information in the manual), the STOP
mode is now the OFFLINE mode.
Changing DP Modes
The mode of the DP master can be changed as follows:
By system events or user intervention:
− Switch setting on the PROFIBUS CP or CPU or using the PG functions
− Other disturbances (for example problems on the bus)
By a DP Start/Stop control job in the user program.
Comments to this Manuals