Profibus Implementation; B.5 Profibus Implementation - Siemens SIMATIC FC 45 Function Manual

Programming the MOBY-ASM on PROFIBUS

B.5 PROFIBUS implementation

B.5

PROFIBUS implementation

B.5
PROFIBUS is implemented on the MOBY-ASM strictly in accordance with standard
IEC 61784-1:2002 Ed1 CP 3/1. Cyclic data communication (standard specified by EN 50170)
and optional non-cyclic data communication are used.
The following figure shows the communication interface to a MOBY-ASM. PAW and PEW
are exchanged cyclically between ASM and function block. PEW tells the function block
when commands and data may be transferred to the ASM. Commands and data are put into
data records.
B-22
Function manual, Release 03/2006 , J31069-D0167-U001-A2-7618
FC 45