Anybus® CompactCom™ 40 - PROFINET IRT IIoT Secure

Activating S2 System Redundancy in the GSD File

For each DAP, the following additions must be made to an S2 compliant configuration in the GSD file:

  • SystemRedundancy element attributes according to:

<SystemRedundancy DeviceType=”S2” MaxSwitchOverTime=”45”
S2MaxInputOnBackupDelay=”0” RT_InputOnBackupAR_Supported=”true”
NumberOfAR_Sets=”1”/>

  • The attribute PrmBeginPrmEndSequenceSupported according to:

<DeviceAccessPointItem ... PrmBeginPrmEndSequenceSupported=”true”/>

  • The attribute PDEV_CombinedObjectSupported according to:

<InterfaceSubmoduleItem ... PDEV_CombinedObjectSupported=”true”/>

  • The attribute NumberOfAR (equal two times NumberOfAR_Sets) according to:

<ApplicationRelations ... NumberOfAR=”2”/>

For S2 System Redundancy, MinDeviceInterval has been set to "32" in the GSD file, equivalent to a minimum cycle time of 1 ms. This has been done to account for the potentially big load of operating two I/O AR:s.

<DeviceAccessPointItem ... MinDeviceInterval="32" .../>

Depending on the process data size and layout exchanged on the network in a specific application, it may be possible to set MinDeviceInterval to a lower value (but not lower than 8).

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