Programming MOBY-ASM on PROFIBUS-DP-V1
B-25
FC 56
J31069-D0155-U001-A0-7618
B.7
PROFIBUS Implementation
PROFIBUS is implemented on the MOBY-ASM strictly in accordance with the
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.
Com-
mands
Data
acknow-
ledgments
Function
block
ASM_address
ASM_channel
MDS_IO_control
ECC_mode
MOBY_mode
scanning_time
Interface to the user
ASM 475
MOBY-ASM
MDS
data
DR11x(n)
DR11x(1)
DR11x(0)
MOBY
driver
DR11x
Data
DR10x
Parameter
DR10x(0)
PEWx
PAWx
PEWx
PAWx
Sequence
control
Bus
SAP57
SAP56
SAP51*
SAP51*
x = Channel
n = No. of the command on ASM (n
max
= number of buffers on ASM (see chap. 2.4)
* = SIMATIC S7 uses SAP 51 and SAP 54 for non-cyclic communication.
Summary of Contents for MOBY FC 56
Page 12: ...Introduction 1 6 FC 56 J31069 D0155 U001 A0 7618 ...
Page 63: ...5 1 FC 56 J31069 D0155 U001 A0 7618 Sample Applications 5 ...
Page 80: ...Sample Applications 5 18 FC 56 J31069 D0155 U001 A0 7618 ...
Page 90: ...Entry Exit Check of an MDS in an SLG Field 6 10 FC 56 J31069 D0155 U001 A0 7618 ...
Page 94: ...System Configuration 7 4 FC 56 J31069 D0155 U001 A0 7618 ...
Page 100: ...Commissioning Guidelines 8 6 FC 56 J31069 D0155 U001 A0 7618 ...
Page 101: ...9 1 FC 56 J31069 D0155 U001 A0 7618 Error Messages and Trouble Shooting 9 ...
Page 152: ...Programming MOBY ASM on PROFIBUS DP V1 B 30 FC 56 J31069 D0155 U001 A0 7618 ...