Process Image For Slaves Connected To The Fieldbus; Access To Process Images Of The Input And Output Data Via Codesys; Table 192: Access To The Process Images Of The Input And Output Data - Internal Data Bus - WAGO 750-8207 Manual

252 Run-time System CODESYS 2.3
I/O Module Data Width
The data width of an I/O module is between 0 and 48 bytes.
I/O Module Process Data
Check the I/O module process data whenever you add or remove the modules
to/from the fieldbus controller. Changing the I/O module topology results in an
adjustment of the process image, as the process data addresses also change.
8.6.2

Process Image for Slaves Connected to the Fieldbus

The size and structure of the process image for the slaves connected to the
system are described in the section for the specific fieldbus.
No direct access from fieldbus to the process image for I/O modules!
Any data that is required from the I/O module process image must be explicitly
mapped in the CODESYS program to the data in the fieldbus process image and
vice versa! Direct access is not possible!
8.7 Access to Process Images of the Input and Output
Data via CODESYS 2.3
The following tables describe the possibilities with which you can access the
address ranges of the process image for the inputs and outputs connected to the
internal data bus.
Table 192: Access to the Process Images of the Input and Output Data – Internal Data Bus
Memory area
Internal data bus
input process
image
Internal data bus
output process
image
* The use of up to 250 I/O modules is possible with the WAGO internal data bus extension modules.
Manual
Draft version 1.2.1 from 2017-09-13, valid from FW Version 02.06.20(09)
Description
Map of the local input modules
(internal data bus, I/O module 1
*
to 1 bis 64 ) in the RAM.
Map of local output modules
(internal data bus, I/O module 1
*
to 64 ) in the RAM.
WAGO-I/O-SYSTEM 750
750-8207 PFC200 CS 2ETH RS 3G
Access via Logical Address Space
PLC
Read Word
%IW0 to %IW999
Byte
%IB0 to %IB1999
Read/ Word
Write %QW0 to %QW999
Byte
%QB0 to %QB1999