Insights

Field Notes

Short technical notes for plant engineering and OT teams: reporting, SCADA modernization and secure remote access from a field-oriented perspective.

PLC, SCADA and Historian Layers: Where Industrial Reporting Usually Fails

Reporting breaks when SCADA/historian data-point architecture, historian retention and operator input flows are defined after screens; the data path from source signals to reportable output must come first.

Secure Remote Access in OT: Why Direct Vendor VPNs Become a Production Risk

Vendor VPNs without zone design often bypass the maintenance model the plant thought it had.

SCADA Modernization Without Stopping Production: A Brownfield Approach

Modernization progresses when scope is phased by subsystem around operating windows while production continues.