One-way interface for PI to PI data transfer

A system for transferring information from a first PI server on a source platform computer coupled to a first network to a second PI server on a destination platform computer coupled to a separate second network, comprising:

• a send platform computer coupled to the first network and in communication with the first PI server;
• a receive platform computer coupled to the second network and in communication with the second PI server, the receive platform computer including a temporary storage memory and a network user interface;
• and
• a one-way data link coupling the send platform computer to the receive platform computer, the one-way data link configured to transfer data only from the send platform computer to the receive platform computer and to prevent any signal from passing from the receive platform computer to the send platform computer;
• wherein the first PI server includes historical information and database record configuration information, wherein the send platform computer is configured to continually receive a predefined portion of the historical information according to preset parameters and any changed database record configuration information from the first PI server and to transfer the predefined portion of the historical information and any changed database record configuration information to the receive platform computer via the one-way data link,
• wherein the receive platform computer is configured to receive the predefined portion of the historical information and any changed database record configuration information from the send platform computer via the one-way data link,
• wherein the receive platform computer is further configured, if there is no changed database record configuration information, to query the second PI server to determine if a corresponding portion of the historical data exists on the second PI server, and if a corresponding portion of the historical data does not exist on the second PI server, to transfer the current portion of the historical information to the secondary PI server,
• wherein the receive platform computer is further configured, if there is changed database record configuration information, to continually store a current predefined portion of the historical information in the temporary storage memory without transferring such information to the second PI server until a user, via the network user interface, authorizes the release of such information to the second PI server, and
• wherein the receive platform computer is coupled to the send platform computer only via the one-way data link.