#101 Implement trigger for a DDEATH message as input FB_Device

2.0.0.0: Device
closed
i-campbell
None
2020-12-19
2020-12-18
hermsen
No

An input on the Device POU should trigger sending a DDEATH certificate for this device.
This input serves to accommodate this as the customer can then build a watchdog in their application to monitor the physical device. If the physical device is offline and the watchdogs triggers, this will be notified to the primary SCADA.

FB_Device input : Device_Healthy, must be TRUE, if this signal becomes FALSE the DDEATH certificate will be issue if the connectionstate is online. During this phase the device will not send any data again. After the Device_Healthy has been set to TRUE, the device can resume it's normal course of functioning again (plugged, DBIRTH, DDATA etc).

This mechanisms requires at least two states: DDEATH and HEALTH_RESTORE state

DDEATH publishes the DDEATH certificate and after this the device moves to HEALTH_RESTORE state where the device idles and waits until the device health status returns to normal. After this the Device returns to the INIT state and resumes PLUGGED/ONLINE

Note that the monitoring and sending of the input is only valid during device online sessionstate. If the EON session turns to offline during DDEATH period, the device will stay in HEALTH_RESTORE until the device is again healthy. If so the device goes to INIT and resumes plugged/ OFFLINE

Discussion

  • hermsen

    hermsen - 2020-12-18
    • Description has changed:

    Diff:

    --- old
+++ new
@@ -5,6 +5,6 @@

 This mechanisms requires at least two states: DDEATH and HEALTH_RESTORE state

-DDEATH publishes the DDEATH certificate and after this the device moves to HEALTH_RESTORE state where the device idles and waits until the device health status returns to normal. After this the Device returns to the INIT state.
+DDEATH publishes the DDEATH certificate and after this the device moves to HEALTH_RESTORE state where the device idles and waits until the device health status returns to normal. After this the Device returns to the INIT state and resumes PLUGGED/ONLINE

-Note that the monitoring and sending of the input is only valid during device online sessionstate.
+Note that the monitoring and sending of the input is only valid during device online sessionstate. If the EON session turns to offline during DDEATH period, the device will stay in HEALTH_RESTORE until the device is again healthy. If so the device goes to INIT and resumes plugged/ OFFLINE
     

  • hermsen

    hermsen - 2020-12-18
    • assigned_to: h-hermsen --> i-campbell
     

  • i-campbell

    i-campbell - 2020-12-19
    • status: accepted --> closed
     

  • i-campbell

    i-campbell - 2020-12-19

    Done in V1.3.0.2

     

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