Port-to-port communication allows communication from one port to be received on another port. Port-to-port communication allows each port in the group to receive communication from all other ports (up to 3 total) in the group. You can only establish port-to-port communication between the ports on the same side of the DeltaV PK controller (1, 2, 3 OR 4, 5, 6).
Conversely, you can elect to isolate the ports so that no one port communicates with any other port.
Refer to the P-series hardware reference manual for details on the PK controller hardware.
The default configuration has the No ports communicate selection. This means that all ports are isolated (no traffic between any external nodes).
Port-to-port communication does not prohibit communication between any external node connected to one of the ports from communicating with the DeltaV PK controller. This also means that any protocol enabled on the PK controller (server or client) is available on any primary or secondary ports as the protocol (server or client) is configured for primary or secondary connection respectively.
The ports involved in port-to-port communication must be enabled.
Enabling the ports and configuring the port-to-port communication is accomplished using DeltaV Explorer from the PK controller's Properties dialog.
Moving which port has which network cable can affect your port-to-port communications. That is, if you are expecting the networks on ports 1 and 2 to communicate, but you move one of the cables to port 3, the communication will physically be broken.