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CoDeSys 2.3 Runtime Environment
WAGO-I/O-SYSTEM 750
758-874/000-131
WAGO-I/O-IPC-C6
Manual
Version 1.0.0
Process data of the I/O modules
Check the I/O module process data whenever you add or remove the modules
to/from the I/O-IPC. Changing the I/O module topology results in an adjustment
of the process image since the process data addresses also change.
11.1.2
Process Image for the Slaves Connected to the I/O-IPC
Up to 126 slaves can be connected to the I/O-IPC. The I/O-IPC can receive input
data up to a size of 3584 bytes from the slaves and send 3584 bytes of output data
to the slaves. Observer the network guidelines of the fieldbus used. You perform
the fieldbus configuration together with the CoDeSys controller configuration
(See section "Creating the PLC Configuration").
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11.2
Syntax of Logical Addresses
Access to individual memory elements according to IEC 61131-3 is done by the
use of special symbols:
Table 51: Syntax of Logical Addresses
Position
Prefix
Designation
Comments
1
%
Starts the absolute address
I Input
Q Output
2
M Flag
-
X Single
bit
B Byte
(8
bits)
W Word
(16
bits)
3
D
Double word (32 bits)
4
Address
Data width
Two examples:
Addressing by word
%QW27 (28th word)
Addressing by bit
%IX1.9 (10th bit in word 2)
Enter the character string of the absolute address without empty spaces.