Secure OT-to-IT Historian Transfer
Transfer selected OPC UA and OPC XML data from Level 2 to an IT database through a hardware-enforced one-way optical path.
A physically one-way path from OT to IT.
The complete Diodos transfer system is shown as one protected boundary: South PC, one-way fiber-optic converter and North PC.
No return network path.
South-side collection
The Level 3 South PC reads approved OPC UA and OPC XML data from Level 2 sources.
Optical enforcement
The fiber-optic converter physically permits transmission only from South to North.
North-side delivery
The Level 4 North PC reconstructs the transfer and writes it to the approved database.
Designed for high-assurance segmentation.
Protocol-aware input
Collect from OPC UA and OPC XML sources without exposing the OT endpoints to IT.
Hardware-enforced direction
The security property does not depend on a software firewall rule or routing configuration.
Controlled database output
Only the selected, reconstructed historian data reaches the Level 4 destination.
Validate one secure historian flow.
Define the OT sources, one-way boundary and target database.