Festo control block CPX-CEC
2.3 Overview of memory size
Memory CPX-CEC-...-V3
Global memory and constants (RAM) 192 MB
Available flash memory (boot project, project archive, web visualisation, application
data)
16 MB
Flag memory 28 kB
Input 28 kB
Output 28 kB
2.3.1 Remanent variables
The CPX-CEC-...-V3 provides max. 28 kB for storing remanent variables. They are automatically shared
based on the variable declaration within the application.
The following sample combinations for distributing the remanent memory are possible:
RETAIN variable PERSISTENT RETAIN variable
28 kB 0 bytes (only if there is no PERSISTENT variable list)
0 bytes 28 kB
1,024 bytes 28 - 1 kB = 27 kB
x bytes 28,672 - x bytes
Note
• Make sure during programming that the total size of all the remanent data does not exceed the
maximum available range of 28 kB.
This will avoid errors when transferring an application to the CPX-CEC-...-V3.
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