Technical data

Key:
S5-S5:
SIMATIC S5 PLC-PLC communication (Chapter 7)
FL2:
Free layer 2 communication (Chapter 8)
GP:
Global I/Os (Chapter 9)
ZP:
Cyclic I/Os (Chapter 10) CP 5430 TF
DP:
Field bus management layer (Chapter 11) CP 5430 TF/CP 5431 FMS
FMA:
Field bus management layer (Chapter 12)
FDL
: Field bus data link
the services belonging to layer 2 are also known as FDL
(field bus data link) services
7 Application
Layer
6 Presentation
5 Session
4 Transport
3 Network
2 Data Link
1 Physical
ISO/OSI
USER PROGRAMS
L2 transport
PG
functions
COM
I/O
empty
CP
PROFIBUS DIN 19245 T2 (FMS) described in Volume 2
empty
Vol. 2 (CP 5431 FMS)
in
S5S5 FMA
GP
DPFL2
Technology Fiber Optic FO Technology RS 485
PROFIBUS standard DIN 19245 T.1 FDL/MAC/FMA
CI / ALI
FMS
LLI
Fig. 3.3 Protocol Architecture of the CP 5431 FMS
Fundamentals of the Model B8976060/02
Volume 1 3 - 4