IEC 61850 Substation Automation: GOOSE, MMS, Sampled Values Deep Dive Posted by By MPRAUTO MPRAUTO April 22, 2026Posted iniiotNo Comments Complete IEC 61850 reference — SCL data model, GOOSE multicast, MMS, Sampled Values (IEC 61850-9-2), IEDs, and smart-grid substation patterns.