Table of contents
Preface ...................................................................................................................................................... iii
1
2
2.1
2.1.1
2.2
2.2.1
2.2.2
2.2.3
2.2.4
3
Communication....................................................................................................................................... 3-1
3.1
Interfaces ................................................................................................................................... 3-1
3.1.1
Multi-Point Interface (MPI) ......................................................................................................... 3-1
3.1.2
PROFIBUS DP........................................................................................................................... 3-2
3.1.3
PROFINET (PN)......................................................................................................................... 3-3
3.1.4
Point to Point (PtP) .................................................................................................................... 3-5
3.2
Communication services............................................................................................................ 3-6
3.2.1
3.2.2
PG communication..................................................................................................................... 3-7
3.2.3
OP communication..................................................................................................................... 3-7
3.2.4
3.2.5
S7 communication ..................................................................................................................... 3-8
3.2.6
3.2.7
Routing..................................................................................................................................... 3-10
3.2.8
PtP communication .................................................................................................................. 3-15
3.2.9
Data consistency...................................................................................................................... 3-16
3.2.10
3.2.10.1 PROFINET IO System ............................................................................................................. 3-19
3.3
S7 connections ........................................................................................................................ 3-26
3.3.1
3.3.2
3.3.3
3.3.4
3.4
DPV1........................................................................................................................................ 3-32
CPU 31xC and CPU 31x, Technical data
Manual, Edition 08/2004, A5E00105475-05
vii