SMA OPC SERVER - Manual (Page 22)

Configuration SMA Solar Technology AG
22 OPCServer-BEN100813 User Manual
5.7.3 Namespace
The Sunny WebBox delivers all parameters and instantaneous values of the connected devices
(e.g. Sunny Boy inverters, Sunny Central inverters or Sunny SensorBox devices) to the SMA OPC
Server. This data is designated as Namespace. The namespace is made available to the OPC Clients
via the OPC interface of the SMA OPC Server.
Before detecting the namespace with the SMA OPC Server, all the devices of the PV plant must have
been commissioned and detected by the relevant Sunny WebBox.. Otherwise, the namespace cannot
be properly detected.
Changes in the Sunny WebBox configuration
Re-detect the namespace with the SMA OPC Server if there are any changes to the
following properties of a Sunny WebBox:
• Change of firmware of the connected devices
• Change of the network setting of the Sunny WebBox
• Change in the devices of a PV plant which are detected via the Sunny WebBox
(e.g., when an inverter is added, removed or replaced)
Generate namespace backup file
After detecting the namespace create a backup file using the [Export namespace] button.
Save the backup file on a secure drive so that you can re-import the namespace in case of
data loss. The Sunny WebBox devices do not need to be reentered.
Button Meaning
"Detect namespace" Detects the namespace of all registered Sunny WebBox devices. For
large systems, the detection of the namespace can take up to
60 minutes.
"Export namespace" Exports the namespace of all registered Sunny WebBox devices in
xml format.
"Import Namespace" Imports a previously exported namespace.
Parameter overview
You will find a complete list of instantaneous values and parameters in the respective
manual of your SMA product. The most frequently used instantaneous values can be found
in section 10 ”Measuring Channels” (page 30).