WAGO-I/O-SYSTEM 750 XTR
Run-time System CODESYS 2.3 279
750-8212/040-010 PFC200 G2 2ETH M12 RS XTR
Manual
Version 1.0.0, valid from FW version 03.01.07(13)
8.6.1
Process Images for I/O Modules Connected to the
Controller
After starting the fieldbus controller, it automatically detects all connected I/O
modules.
The analog input and output data is stored first word by word in the process
image. Subsequent to this, come the digital input and output data bits combined
to form words.
The size and structure of the process image for the I/O modules connected to the
system are described in the appendix.
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!
