Object Description
This object defines a standardized way of reporting different types of measurement values (current, voltage, power, energy etc.) from a measuring device.
Each instance, logical device, represents a group of measurement values for one separate measurement device. Physically, measuring devices might be connected to a higher level network directly, or indirectly via a coupling device. To enable host applications to implement either a direct or an indirect measuring device, the Anybus CompactCom object model implies a 1:1 relationship between measuring device (a.k.a. logical device) and instance number, where each instance attribute represent a group of measurement values (see list of instance attributes below). The host application does not have to support all instance attributes listed.The command Get_Attribute_Measurement_List is used towards the host application, to read out which measurement values are supported by a device.
The table below shows an example of how the instances of the Anybus CompactCom object model maps to PROFIenergy. PROFIenergy uses the Object number to address a logical device, while the Measurement ID refers to the actual measurement value.
Instance number | Attribute number | PROFINET | Description | |
|---|---|---|---|---|
(logical device) | (measurement value) | Obj nr | Measurement ID | |
1 | 1 | 0 | 1,2,3,31 | Logical device #1 #1-Voltage PH-N #4-Voltage PH-PH #10-Current |
4 | 4,5,6,32 | |||
10 | 7,8,9,33 | |||
2 | 1 | 1 | 1,2,3,31 | Logical device #2 #1-Voltage PH-N #4-Voltage PH-PH #10-Current |
4 | 4,5,6,32 | |||
10 | 7,8,9,33 | |||
3 | 13 | 2 | 10,11,12,36 | Logical device #3 #13-Apparent Power #16-Active Power #19-Reactive Power |
16 | 13,14,15,34 | |||
19 | 16,17,18,35 | |||
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