SMA OPC SERVER - Manual (Page 25)

SMA Solar Technology AG Operation
User Manual OPCServer-BEN100813 25
6.4 OPC Client Notes
6.4.1 OPC Client Installation
6.4.2 Displaying the namespace in an OPC Client
The namespace is displayed hierarchically in an OPC
Client. The individual devices of the PV plant will be listed
under the Sunny WebBox.
Each device contains the subdirectories "measurement" for
the instantaneous values and "parameters" for the
parameters.
Example: OPC Client with the selection of the Sunny
WebBox "EU" > Inverter "WR8TL005:2000101003" >
"measurement".
6.4.3 Changing Parameters via the OPC Client
During start-up of the SMA OPC Server, the server detects
the parameter values of the connected Sunny WebBox
devices once and makes these available to the OPC Client.
When parameter values are changed directly via a
communication device (e.g., Sunny WebBox), these
changes are not displayed automatically at the OPC Client.
You can update the parameter values by means of the
"Parameter Refresh" option. To do this, enter "SMA" as the
value in "Parameter Refresh", and save this value. The SMA
OPC Server will update all device values. This can take up
to 2 minutes.
OPC Core Components
Before you can process instantaneous values and parameters of the PV plant with an
OPC Client, you must install the OPC Core Components valid for your operating system on
the SMA OPC Server and the computer of the OPC Client.
The OPC Core Component for the SMA OPC Server can be installed simultaneously with
the installation of the SMA OPC Server. The OPC Core Component for the OPC Client is
to be found on the CD-ROM provided.