Siemens SIMATIC NET S7-300 - Page 310

E Linking to Other Systems with FETCH/WRITE
A-310
S7-CPs for Industrial Ethernet Configuring and Commissioning
Release 01/2007
C79000-G8976-C182-07
S7
Address Area
PI/PQ C T
ORG ID 05
H
06
H
07
H
Source/dest.
data from/to in
I/O modules.
With source
data input
modules, with
dest data
output modules
Source/dest
data from/to
counter cells
Source/dest
data from/to
timer cells
DBNR irrelevant irrelevant irrelevant
Start address I/O byte no.,
from which the
data are taken
or written to
Number of the
counter cell
from which the
data are taken
or written to
Number of the
timer cell from
which the data
are taken or
written to
permitted range 0...127
digital I/Os
128...255
analog I/Os
0...255 0...255
Length Length of the
source/dest.
data field in
bytes
Length of the
source/dest.
data field in
words (counter
cell = 1 word)
Length of the
source/dest.
data field in
words (counter
cell = 1 word)
permitted range 1...256 1 1