Beckhoff EL6731 Documentation page 87

Parameterization and commissioning
Expected DP cycle time
Shows the expected PROFIBUS cycle time.
DP cycles/task cycle [only FC310x]
This can be used to set several DP cycles in a task cycle, in order to obtain as many new inputs as possible
(see section Slave prioritization/several DP cycles [} 129]).
Timing DP cycle...
Shows the timing of the DP cycle; this is particularly advantageous when slave prioritization [} 129] is used.
Startup/fault settings...
This is used to select the Fault settings dialog [} 89]
Firmware
Shows the current firmware version of the EL6731.
Scan Devices...
This is used to scan the PROFIBUS. All devices that are found are added to the EL6731. In the case of
Beckhoff boxes, the configuration is read precisely. In the case of external devices, the corresponding GSD
file will be searched.
Check configuration... [only FC310x]
This is used to scan the PROFIBUS and compare it with the currently attached boxes; changes are
displayed.
5.1.6.2.2 Bus parameters dialog
Fig. 88: Bus parameters dialog
Slot Time
The Slot Time indicates how long the DP master will wait for a response from the DP slave before it sends
either a repetition or the next telegram.
min. Tsdr
The minimum Tsdr indicates the minimum length of time for which the DP slave will wait with a response.
This time is set for all the DP slaves during the DP start-up (the value range is 11-255 bit periods). The
minimum Tsdr must be smaller than the maximum Tsdr.
EL6731 Version: 2.8 87