Structure Of The 7Kn Powercenter 3000 Data Points - Siemens SENTRON 7KN POWERCENTER 3000 Manual

Functions
5.6 Cloud service with MQTT
5.6.4

Structure of the 7KN POWERCENTER 3000 data points

The subscribed data points are supplied with the following structure:
{
"item_id": "ea86dfb4-cf6b-47c6-8261-8b215efcd1f3",
"count": 1,
"total": 1,
"_embedded": {
"item": [
]
}
}
Structure
item_id
count
Total
_embedded
item
74
{
"name": "active_power",
"id": 80,
"internal_name": "Power/W/Inst/Value/Sum",
"display_name": "Total active power",
"display_value": "906.3 W",
"value": "906.315",
"unit": "W",
"quality": "valid",
}
name
id
internal_name
display_name
display_value
value
unit
quality
valid
invalid
not_supported
Description
Identification of the device in the 7KN Powercenter 3000. Further in-
formation about the item can be retrieved via:
{IP-Adresse}/api/v1/items/{item_id}
Number of data points in the following list.
Reserved
Reserved
Data point
Name of the data points in the device. If it is filled out, this name is
identical for all SENTRON devices that offer this measured variable.
Reference of the data point in the device.
Internal name in the 7KN Powercenter 3000
Name to be displayed on the user interface. This name is identical to
the name in the web user interface of the 7KN Powercenter 3000, i.e.
text in the language according to the settings of the 7KN Powercenter
3000 ("Settings → Miscellaneous").
For display of prepared value of the data point in the display format, i.e.
text in the language and time zone ("Settings → Miscellaneous") (nota-
tion, separator) in accordance with the web user interface of the
7KN Powercenter 3000.
Value of the data point in the stated unit ("unit"). This value is typically
used for further processing.
Unit of the value, e.g. W = watt, kWh, etc. in ASCII format.
Current status values, as a string.
Valid
Currently invalid. The source of the fault must be determined separate-
ly.
Value is not supported, for example, because the type or value is not
supported in the current device setup.
7KN POWERCENTER 3000
Equipment Manual, 07/2020, L1V30579222003-03