Process Image For The Slaves Connected To The I/O-Ipc; Syntax Of Logical Addresses; Table 51: Syntax Of Logical Addresses - WAGO -I/O-IPC-C6 Manual

98 CoDeSys 2.3 Runtime Environment
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
1
2
3
4
Two examples:
Addressing by word
Addressing by bit
Enter the character string of the absolute address without empty spaces.
Prefix Designation
% Starts the absolute address
I Input
Q Output
M Flag
X Single bit
B Byte (8 bits)
W Word (16 bits)
D Double word (32 bits)
Address
%QW27 (28th word)
%IX1.9 (10th bit in word 2)
WAGO-I/O-SYSTEM 750
758-874/000-131 WAGO-I/O-IPC-C6
Comments
-
Data width
Manual
Version 1.0.0