sdg.marinusvz
2012-04-03 08:50
Attached images refer. I?m looking at WavenetExplorer to set up alarms and events for Wavenis, and I see three possible tabs where I may have to provide settings for this:
Image alarm_1: Meter Setup
Do we tick the boxes here for the ?Detections? we want?
What do we do with the ?Profile? drop-down?
Image alarm_2 : Status
Are all of these viable alarms for detection?
Otherwise which ones can we use with PnPScada?
Image alarm_3: Alarm Setup
Again, which are viable alarms here for detection on PnPScada?
What, if anything, must we select / input under the ?Alarm Hops? section? What is the ?Destination? field for?
For the ?Minimum? and ?Maximum? threshold parameters, what does the ?Value? field refer to? Is it litres or kilo litres for water, so when multiplied by the ?Duration? it will give you a minimum / maximum flow-rate parameter?
What would be a typical / reasonable ?Time between measurements? value?
sdg.marinusvz
2012-04-03 09:42
I know the second screen is the status on whether the alarm has happened or not, and that is where you clear it in order to be able to see when another alarm of the same kind happens again (by reading). That is why it is both read and write: because you have to be able to clear it.
The last screen is important (and especially the route back - where the repeaters are specified with the long radio address, and the waveport with the HEX number address).
I'm not sure what the first screen is about. Can somebody else please answer that?
As for the behavior of the MIU for when it generates alarms, I think somebody at the manufacturer (Elster) would be the correct person to answer those questions?
sdg.matiaan
2012-04-10 11:46
sdg.matiaan
2012-04-10 11:52
The second screen (Status) is where you can check if an event is currently set in the MIU.
The only real use of this screen is to clear the events once they've happened (and has been fixed).
The event will not trigger again until its been cleared.
e.g. someone cuts the wires,
you get an alarm from the MIU,
the wirecut flag gets set,
the MIU does not detect wirecut anymore
you go to site and fix the wires
you unset the wirecut flag using wavenetexplorer status screen
now the MIU starts looking for wirecuts again
stbadmin
2012-05-08 10:58
1. In WavenetExplorer, can you confirm that the threshold value is indeed in 'litres' and not 'kilolitres' - this makes a significant difference to capturing the correct alarm condition when it occurs. By my reckoning, the threshold value is a function of the pulse-constant of the meter and number of pulses occurring in the specified period. So, for a bulk meter with k=100 (giving 1 pulse per 100 litres); a threshold value of 1 should return an alarm condition for 'consumption above 0.1 kilolitres' - and not 0.1 litres (which is only 100ml..!).
Then again, I may be interpreting this wrong... :-) Please confirm what is correct?
2. Also with reference to the image below: Sample Interval should be how often samples are taken; but when I advance the digits in WavenetExplorer, the number of samples increases in the explanation text. Number of Samples should be how many samples are taken in a specified period; but when this unit is advanced, the sample period (in minutes) is increased. This is confusing me.
Please help...!