Issue:
What is the state of Tesys Island after a communication loss?
Product Line:
Motor Management system Tesys Island
Environment:
IEC Contactors and Starters
Resolution:
When fieldbus communication with the controller is lost, TeSys island remains in the operational state however, enters Degraded mode. Communication loss is defined by:
• EtherNet/IP fieldbus: Communication loss is detected when an established exclusive owner connection times out. NOTE: If the PLC enters an idle state for an established exclusive connection, the TeSys island will run in normal condition.
• Modbus/TCP fieldbus: Communication loss is detected after receiving no write requests to the cyclic I/O scanning data for the duration specified by the Communication Loss Timeout setting in the DTM.
• PROFINET fieldbus: Communication loss is detected when an established application relation (AR) with an I/O controller is closed or disconnected on either end of the AR. TeSys island supports one AR per I/O controller.
• PROFIBUS-DP fieldbus: Communication loss is detected when the watchdog timer for the connection expires.
NOTE: Loss of communication with the DTM or OMT does not trigger the transition to Degraded mode.
During Degraded mode:
• The Fieldbus ports remains active.
• The Service port remains active.
• The TeSys avatars enter Degraded mode. During Degraded mode, avatars with local control are driven by local inputs. All other avatars enter Fallback state.
What is the state of Tesys Island after a communication loss?
Product Line:
Motor Management system Tesys Island
Environment:
IEC Contactors and Starters
Resolution:
When fieldbus communication with the controller is lost, TeSys island remains in the operational state however, enters Degraded mode. Communication loss is defined by:
• EtherNet/IP fieldbus: Communication loss is detected when an established exclusive owner connection times out. NOTE: If the PLC enters an idle state for an established exclusive connection, the TeSys island will run in normal condition.
• Modbus/TCP fieldbus: Communication loss is detected after receiving no write requests to the cyclic I/O scanning data for the duration specified by the Communication Loss Timeout setting in the DTM.
• PROFINET fieldbus: Communication loss is detected when an established application relation (AR) with an I/O controller is closed or disconnected on either end of the AR. TeSys island supports one AR per I/O controller.
• PROFIBUS-DP fieldbus: Communication loss is detected when the watchdog timer for the connection expires.
NOTE: Loss of communication with the DTM or OMT does not trigger the transition to Degraded mode.
During Degraded mode:
• The Fieldbus ports remains active.
• The Service port remains active.
• The TeSys avatars enter Degraded mode. During Degraded mode, avatars with local control are driven by local inputs. All other avatars enter Fallback state.
Released for:Schneider Electric USA
