Does anyone have experience in connecting a PI server to an RTU (Remote Terminal Unit) and collecting I/O readings from the RTU?
Hi Chun-Hao Lo,
Usually, most people will connect RTUs to PI by implementing an OPC Server layer. So the data flow is:
RTU -> OPC Server -> PI OPC Interface (or Connector)-> PI Server
Thank you for the comment!
The DNP3 interface is also something that is commonly used to communicate to RTU devices.
Thank you for the information. If I chose to use DNP3 Interface, would it be recommended to have DNP3 PI interface and PI Server on two separate machines? Would the data flow looks like RTU -> DNP3 PI Interface -> PI Server?
You should always keep your interfaces (in most cases) on separate machines from your Data Archive. So like you mention, your data flow will look like RTU -> DNP3 PI Interface -> PI Server
Suppose there are 2 process networks (PN 1 & PN 2) and we want to connect them using an OPC Interface and DNP3 Interface, respectively. Can we have the two interfaces set up on the same machine while the Data Archive is on a separate machine? Or is it recommended to have the two interfaces on two separate machines?
As long as the one interface machine can communicate to both PN's, then having both on the same node will not cause any issues.
Retrieving data ...