Allow the same RTU Address to be used across different IP nodes
The current implementation of the PI Interface for DNP3 does not allow the same RTU address to be used across different IP nodes. The PI Point Location3 attribute is used to specify the RTU address only. If a customer has multiple RTUs with the same address but on different IP nodes, they either have to reconfigure all of the RTUs to have different addresses, or create a new DNP3 interface instance for every IP node.
Case example:
Customer has 800 SEL-735 meters, each with a different IP address, and each with a DNP Address (RTU address) of 1. He has created an IO Group for each IP Address and one RTU in each IO Group, but there is no way to configure his PI tags to look at a particular IO Group.
Because of this limitation, his options are to reconfigure all 800 meters to use different RTU addresses, or create 800 instances of the DNP3 interface.
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2 comments
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PrasadAvvaru
commented
We also have similar issue while implementing PI for Transmission equipment. If the DNP3 interface creates a manually entered number (similar to interface id) for each RTU device as Device Number or RTU Number in the interface configuration and use this for Location 3 instead of RTU DNP address, it will solve the issue with PI Points. RTU is distinct with different IP and Port and Device DNP address, so interface can communicate with the devices, but the problem arises with PI Point configuration because of same DNP address across IO Groups (IP/Port).
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Jaedyn Larson
commented
The current implementation of the PI Interface for DNP3 does not allow the same RTU address to be used across different IP nodes. The PI Point Location3 attribute is used to specify the RTU address only. If a customer has multiple RTUs with the same address but on different IP nodes, they either have to reconfigure all of the RTUs to have different addresses, or create a new DNP3 interface instance for every IP node.
Case example:
Customer has 800 SEL-735 meters, each with a different IP address, and each with a DNP Address (RTU address) of 1. He has created an IO Group for each IP Address and one RTU in each IO Group, but there is no way to configure his PI tags to look at a particular IO Group.
Because of this limitation, his options are to reconfigure all 800 meters to use different RTU addresses, or create 800 instances of the DNP3 interface.