252 Run-time System CODESYS 2.3
WAGO I/O SYSTEM 750 XTR
750-8202/040-001 PFC200 2ETH RS TELE XTR
Manual
Version 1.2.0, valid from FW Version 03.01.07(13)
8.3
Syntax of Logical Addresses
Access to individual memory elements according to IEC 61131-3 is possible
using only the following special symbols:
Table 203: Syntax of Logical Addresses
Item
Prefix
Description
Notes:
1
%
Starts the absolute address
-
2
I
Input
Q
Output
M
Flag
3
X
Single bit
Data width
B-
Byte (8 bits)
W
Word (16 bits)
D
Double word (32 bits)
4
Address
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. The first
bit of a word has an address of 0.
8.4
Creating Tasks
Set the time response and the priority of individual tasks in the task configuration.
Watchdog
In an application program without task configuration, there is no watchdog that
monitors the cycle time of the application program (PLC_PRG).
Create a task as follows:
1.
Open the task configuration by double-clicking on the “Task configuration”
module in the “Resources” tab.
