8.1 Introduction8.2 Profibus Family8.3 Transmission Technology8.4 Communication Protocols8.5 Device Classes8.6 Profibus in Automation8.7 Osi Model of Profibus Protocol Stack8.8 Profibus-Dp Characteristics8.8.1 Version DP-VO8.8.1.1 Diagnostic Functions8.8.1.2 Synchronization and Freeze Mode8.8.1.3 System configuration8.8.1.4 Time monitors8.8.1.5 Token-Passing characteristics8.8.2 Version DP-V18.8.2.1 cyclic and Acyclic communication8.8.3 Version DP-V28.8.3.1 Slave-to-Slave communication8.8.3.2 Isochronous Mode8.8.3.3 Clock Control8.8.3.4 Upload and Download8.8.3.5 HART on DP8.8.3.6 Comparison between DP-V0, DP-V1, and DP-V28.8.4 Communication Profile8.8.5 Physical Layer8.8.5.1 Transmission Speed vs. Segment Length8.8.6 Data Link Layer8.8.7 DDLM and User Interface8.8.8 State Diagram of Slave8.8.9 Addressing with Slot and Index8.9 Profibus-Pa Characteristics8.9.1 Bus Access Method8.9.4 PA Block Model8.9.4.1 Transducer Block8.9.4.2 Physical Block8.9.4.3 Function Block8.9.4.4 Device Management Block8.10 Network Configuration8.11 Bus Monitor8.12 Time Stamp8.13 Redundancy8.14 Profisafe8.15 Profidrive8.16 Profinet8.17 Profibus International8.18 Foundation Fieldbus and Profibus—A Comparison