Table 52: Memory Areas For The Input And Output Data Of Codesys - WAGO -I/O-IPC-C6 Manual

100 CoDeSys 2.3 Runtime Environment

Table 52: Memory Areas for the Input and Output Data of CoDeSys

Memory
Area
Flag variables
Retain
variables
*
The use of up to 250 I/O modules is possible with the WAGO internal data bus extension
modules.
** Only for I/O-IPC with fieldbus connections
The total memory size for flag and retain variables is 1023 kB). Use bit-oriented
addressing and observe that the base address is word-oriented. The bits are in the
areas 0 to 15.
Activating "Control Mode" in WAGO-IO-CHECK!
Using WAGO-IO-CHECK, you can overwrite parameters and process data in
"Control Mode" regardless of whether the fieldbus or PLC functionalities are
enabled or disabled. By doing so, machine components may be placed in a
dangerous state and personnel and machines may be at risk.
Before changing parameters and process data, ensure that the machine
components are in a safe and defined state and switch off the higher-level
controller. Also ensure before start-up that no personnel remain in the danger area
of the machine components.
Adaptation of the remanent memory area
When creating a project, a configuration window for the selection of the
destination system appears (see section "Designing a Project and Selecting the
Target System").
1. To adapt the remanent memory area, click on the "Memory Layout" tab in
the "Target Settings" configuration window.
2. Enter the following values in the "Memory" and "Retain" field:
Description
8 kB residual memory in
the SRAM.
Declared with "AT
%M<Address>".
(Expandable to 24 kB)
Symbolic addressable
retain memory in the
SRAM: 1023 kBytes
758-874/000-131 WAGO-I/O-IPC-C6
Access via Access via
MODBUS- PLC
TCP
Read/ Read/
Write Write
Read/
Write
WAGO-I/O-SYSTEM 750
Logical Address Space
Word
%MW0 to
%MW 4095
Byte
%MB0 to %MB8190
(%MW12287)
Manual
Version 1.0.0