Parameterizing The F-Master (Nck) - Siemens SINUMERIK 840D sl Function Manual

DP cycle time
After the station has been fully configured, the DP cycle time can be determined by activating
the equidistant (isochronous) bus cycle:
Open the properties dialog box of PROFIBUS DP master of the configured station in HW Config:
Dialog: Properties – DP master system
Tab: General
Subnetwork, button: Properties
Dialog: Properties - PROFIBUS
Tab: Network settings
Button: Options
Dialog: Options
Tab: Equidistance
Option button:
(Note: Activate the equidistant bus cycle using the option button: "Activate equidistant bus
cycle/recalculate equidistant time". This can be used to determine the DP cycle time. The
equidistant bus cycle should then be deactivated again.)
Display field:
(Note: The value calculated by HW Config, and shown in display field "Equidistant bus cycle"
is the same as the DP cycle time)
Cancel
Cancel
Cancel
A corresponding value should be determined for the PROFINET communication coupling.
Note
The communication cycle time is required as guideline when parameterizing the PROFIsafe
clock cycle (refer to Chapter "Parameterizing the PROFIsafe communication (NCK)
(Page 194)").
The information and instructions in the online documentation should be carefully observed
before changing the communication cycle time (button: "Help" of the corresponding dialog).
8.2.4

Parameterizing the F-master (NCK)

The F-master is parameterized in the machine data of the NCK and comprises the following
sub areas:
● PROFIsafe communication
– PROFIsafe address of the F-master
– PROFIsafe clock cycle
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Function Manual, 12/2017, 6FC5397-4BP40-6BA1
Activate the equidistant bus cycle/
Recalculate equidistant time
Equidistant bus cycle
Connecting sensors and actuators
8.2 Connecting I/O via PROFIsafe
193