Specification# 1. Motivation 2. Structure of SECoP 3. Protocol layer 3.1. Transport 3.2. Messages 3.3. Complete message syntax 3.4. UDP discovery protocol 4. Semantic layer 4.1. Reports and values 4.2. Properties and descriptive data 4.3. Data types 4.4. Interface classes 4.5. Parameters and commands 5. Additional topics 5.1. Security and access control 5.2. Future compatibility 6. Changes between versions 6.1. Version 2.0 6.2. Version 1.1 6.3. Version 1.0 Index License notes The diagrams were generated using a modified copy of EnricoFaulhaber/railroad_dsl.