Configuring Hardware and Communication Connections STEP 7.pdf

Procedure
Configuring the Distributed I/O (DP)
1. Configure a PROFIBUS subnet with a DP master that supports the "constant
bus cycle time" function (see the info text in the "Hardware Catalog" window of
Hardware Configuration).
2. In the Network view, double-click on the PROFIBUS subnet.
3. In the Properties dialog box ("Network Settings" tab), select the "DP" profile
and click the "Options" button.
4. In the "Constant Bus Cycle Time" tab, set the constant bus cycle time behavior
that is appropriate for your application and, where necessary, adapt the times
to be considered and the connected programming devices/operator panels.
You can find detailed information on the possible settings by clicking the Help
button in the dialog box. If the "Constant bus cycle time" tab is not displayed,
this means that not all the requirements for operation with constant bus cycle
time have been met (see above).
Additional Information
You can find more detailed information on setting the constant bus cycle time in the
Help for the tab dialogs.
Configuring Hardware and Communication Connections with STEP 7
A5E00706939-01 3-81