Configuring Hardware and Communication Connections STEP 7.pdf

Configuring PROFINET IO Devices
Reading and setting the update time globally from a central location
Tip
To open the dialog to read and change the update time, proceed as follows:
1. Double-click the IO system (the "railroad track").
2. Select the "Update Time" tab.
- If, in addition to PROFINET IO, other cyclical services (i.e. from
Component-based Automation, CBA) have to be taken into consideration:
Go to the "Communication Component (PROFINET IO)" field and select a
percentage that should be reserved for PROFINET IO.
If at least one IO device is configured, then the default setting is 100%.
If no IO device is configured, then the default setting is 0%.
- Select the desired option for setting the update time: for the entire IO
system or for a specific device.
3. If you like, you can increase the update time (for the entire IO system or for a
specific IO device).
Regardless of the option that you select: the dialog always shows the calculated or
already configured update times. This applies to a setting for the entire IO system
or a setting for a specific IO device.
Reading and setting the update time at the IO device
To open the dialog to read and change the update time for specific IO device,
proceed as follows:
1. Double-click the IO device.
2. Select the "IO Cycle" tab.
3. Check the current setting for the update time. If necessary, change it and then
confirm the settings with "OK".
Configuring Hardware and Communication Connections with STEP 7
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