Hi,

I have fund something very strange. The value in a variable follow the value in an other variable without assigment bettween there.

Focus on code:

VAR_GLOBAL

StateLanguage: INT:=0;

END_VAR

VAR

LastLanguageTime: INT;

change_Language: BOOL;

END_VAR

IF StateLanguage<>LastLanguageTime THEN

LastLanguageTime:=StateLanguage;

change_Language:=TRUE;

END_IF

IF change_Language=TRUE THEN

(*lot of things*)

change_Language:=FALSE;

END_IF

Describe of the problem:

The 2 local variable are not used in other part of the project (not 2 times the same name).

I download the program in the board and go in debug mode.

When StateLanguage is 1, LastLanguageTime become 1 and change_Language is lock at TRUE.

When StateLanguage is 2, LastLanguageTime become 2 and change_Language become " INVALID: 16#02 ".

If I forced change_Language to FALSE, LastLanguageTime was locked to 0 and StateLanguage continu to evoluate in function of other part of the program.

Tried things:

Change names of variables.

Change position of declaration of these variables.

Precision:

My code use almost all the memory. What append with CoDeSys if we need more variables than possible in memory?

CoDeSys 2.3.4.1 and Target Controler Inside

Thanks,