Siemens Sinumerik 840D sl Function Manual page 214

Connecting Sensors/Actuators
7.2 Connecting I/O via PROFIsafe
Dialog: Properties -- DP master system
Tab: General
Subnetwork, button: Properties
Dialog: Properties -- PROFIBUS
Tab: Network settings
Button: Options
Dialog: Options
Tab: Equidistant mode
Checkbox:
(Note: Activate the equidistant bus cycle using the checkbox: "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 displayed in the display field:
"Equidistant bus cycle" has the same significance 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 7.2.5 "Parameterizing the PROFIsafe
communication (NCK)").
The information and instructions in the online documentation should be carefully
observed before changing the communication cycle time (button: "Help" of the
relevant dialog box).
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SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) - - 10.2015 Edition
Activate equidistant bus cycle /
Recalculate equidistant time
Equidistant bus cycle
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