Digital Substation is an engineering publication focused on IEC 61850 automation, protection systems, and digital grid intelligence.
XML Schema validation checks structure — it cannot verify that a GOOSE subscription references a valid dataset or that a logical node contains required data objects. Object Constraint Language (OCL) fills that gap. IEC TS 61850-6-3, published in 2025, defines how OCL rules should be written and applied to IEC 61850 XML files, laying the groundwork for consistent, formal SCL validation across tools.
There is quite a few projects we've met, where each IED publishes single GOOSE message with huge dataset instead of having several GOOSE. We decided to understand which solution is preferrable?
GOOSE-messaging has been covered a lot in many technical papers and to add anything valuable to the subject is rather difficult. But we will try. And functional constrained data will help us with that.