WAGO I/O SYSTEM 750 XTR
Run-time System CODESYS 2.3 265
750-8202/040-001 PFC200 2ETH RS TELE XTR
Manual
Version 1.2.0, valid from FW Version 03.01.07(13)
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
local bus.
Table 205: Access to the Process Images of the Input and Output Data – Local Bus
Memory Area
Description
Access
via PLC
Logical Address Space
Local bus input
process image
Map of the local input modules
(I/O module 1 to 64
*
) in the RAM
Read
Word
%IW0 to %IW999
Byte
%IB0 to %IB1999
Local bus output
process image
Map of the local output modules
(I/O module 1 to 64
*
) in the RAM
Read/
Write
Word
%QW0 to %QW999
Byte
%QB0 to %QB1999
* The use of up to 250 I/O modules is possible with the WAGO local bus extension modules.
