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C200HW-PRM21 PROFIBUS Master DTM
Section 2-4
!Caution
Saving the changes in the context of the buttons means that the changes
made by the user are saved in the DTM only, i.e. the changes are not perma-
nently saved in the Project yet. This is indicated by the asterisk next to the
DTM in the Network view. The next time in the same session the GUI is
opened, the changes will still be there. In order to save the changes perma-
nently, e.g. to hard disk, Click the
File - Save
option from the main menu of
CX-Profibus.
Bus Parameters Tab
The Bus Parameters tab contains the parameters for the communication on
the PROFIBUS network. The Bus Parameters tab is shown below.
The Bus Parameters are settings, which define the communication behaviour
and timing on the PROFIBUS network. The Bus Parameters depend on the
selected baud rate, slave communication parameters as well as the number
of I/O data bytes exchanged between the Master Unit and each of the slave
devices.
The required combination of Bus Parameters is calculated by the program,
based on the dependencies mentioned above. However, the user can change
selected Bus Parameter manually if the application requires this.
Button
Action
OK
Evaluate, and save the changes made (if any) and close the user
interface.
Note
If any invalid settings have been made, a warning message
will be displayed, allowing cancellation of the command.
Cancel
Closes the user interface without saving.
Note
If any changes were made, a warning message is displayed,
allowing cancellation of the command.
Apply
Evaluate, and save the changes made (if any).
Note
If any invalid settings have been made, a warning message
will be displayed, allowing cancellation of the command.
Help
Launch context sensitive Help for the Active tab.