138 Run-time System CODESYS V3
WAGO I/O System 750
750-8210/040-000 PFC200; G2; 4ETH; XTR
Manual
Version 1.7.0, valid from FW Version 04.01.10(23)
9.3
Memory Spaces under CODESYS V3
The memory spaces in the controller under CODESYS V3 have the following
sizes:
•
Program memory:
32 Mbytes
•
Data memory:
128 Mbytes
•
Input data:
64 kbytes
•
Output data:
64 kbytes
•
Retain/Persistent:
128 kbytes
•
Function block limitation: 12 * 4096 bytes = 48 kbytes
9.3.1
Program and Data Memory
The program memory (also code memory) has a maximum size of 32 MB.
The data memory has a maximum size of 128 MB.
Both areas are separate from each other and are requested when downloading
to the system depending on the scope of the program. If the size limit is
exceeded, it is displayed as an error.
9.3.2
Function Block Limitation
Together with the data memory to be used by the application, memory is required
for the individual program function blocks in the system.
The size of the administration space is calculated from the function block
limitation * 12 (i.e., 4096 Byte * 12).
The actual size of the main memory required in the system for data is the sum of
global program and data memory and function block limitation memory.
9.3.3
Remanent Memory
A total of 128 kbytes of remanent memory is available for the IEC-61131
application.
The remanent area is divided into the retain area and the persistence area. The
areas are automatically distributed by CODESYS V3.
