GE Industrial Solutions AF-650 GP PROFINET - Manual (Page 35)

7.1.3 Addressing Scheme
The structure of a PROFINET IO Device is shown in Illustration 7.1.
An IO device consists of a number of physical or virtual slots. Slot 0 is always present, and represents the basic unit. Each
slot contains a number of data blocks addressed by an index.
The master must address a variable in the slave as follows: /Slave address/Slot #/Index #
Illustration 7.1 PROFINET IO Device Structure
PROFINET Acyclic Communicat... PROFINET Operating Instruction
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