Aggregate(Minimum) Status Code Computation |OPC UA Standard|Forum|OPC Foundation

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Aggregate(Minimum) Status Code Computation
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SambsivaReddy Appireddygari
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03/09/2016 - 07:51
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Hello,

Aggregate : Minimum

With reference to Section 5.4.3.10

Table 21- Minimum Aggregate Summary defines the following criteria for the status code calculation.

 

Status Code Calculations
Calculation Method Custom

If no Bad values then the Status is Good. If Bad values exist then the Status is Uncertain_SubNormal. If an Uncertain value is less than the minimum Good value the Status is Uncertain_SubNormal.

My question here is :

Do we need to compute (continuously) Uncertain version of minimum value in addition to the good minimum  to resolve the final status code for an interval?

Thanks & Regards

Samba

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Paul Hunkar
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07/15/2016 - 07:39
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Samba,

 In short – yes – you have to compute the status as you go, which depending on the aggregate may me keeping additional values.

Paul

Paul Hunkar - DSInteroperability

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