Siemens SIMATIC NET S7-300 Manual page 310

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