ABB COM600 series 5.1 User Manual page 26

26
COM600 series 5.1
Logic Processor User's Manual
and/or,
• Transferring data from a PLC Application to an OPC communication server (for
example DNP/IEC6 1850) to initiate a control mechanism to a desired outcome,
based on the logic defined in the PLC Application.
In addition to this, the configured symbols (variables within PLC Application) can be
exposed to entities outside of Logic Processor for purposes like,
• Configuring a WebHMI element in COM600 SLD to visually display the state of a
logic in PLC Application for operator consumption,
Or,
•
Transferring the status of a PLC Application to entities outside of COM600 through
slave communication using OPC clients (DNP Slave/ Modbus slave/ IEC 61850
Proxy server), for further SCADA purposes.
This is done using virtual data objects added to Logic Processor IED. These data objects
can be configured to point to a symbol defined in PLC Application and exposing the
data from PLC Application to outside entities, and vice versa.
To create virtual data objects under Logic Processor IED:
1. Add the desired Logical Device (for example LD1) under Logic Processor IED.
Right click Logic Processor IED, select New > Communication > PLC OPC LD.
Rename added object to desired Logical Device name.
2. Add the desired Logical Node (for example LLN0) under Logical Device added in
step 1. Right click Logic Processor IED, select New > Communication > PLC
OPC LN. Rename the added object to desired Logical Node name.
3. Add the desired Data object under Logical Node added in step 2. Right click Logic
Processor IED, select New > Data Objects > APC/SPC/SPS. Each data object
available has a specific set of attributes as defined in IEC 61850 standard.
4. Modify object properties for data object added in step 3. In the OPC Item Path
property field, click the browse button with three dots to open the PLC OPC Item
Path logic variable dialog.
5. Select the symbol available from the list shown and click OK.
These virtual data objects can be used with COM600 WebHMI and slave clients.
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