Hi,

I want to implement that program written in C with CoDeSys written in ST language. I don't know how to do "EQ_SDI_TEMP_SONDA[i].m_TempNOK".

The program:

/******
OBJECT ATTRIBUTES /

struct EQ_SDI_TEMP_SONDA_ATT EQ_SDI_TEMP_SONDA[c_EQ_SDI_TEMP_SONDA_MAX_OBJ];

/*****
METHODS /
/------------------------------------------------------------
---- EQ_SDI_TEMP_SONDA_SetInput ----------------------------------*

void EQ_SDI_TEMP_SONDA_SetInput(CS_UNSIGNED8 i,
CS_UNSIGNED16 In1, / Entrada temperatura SDI. /
CS_BOOLEAN1 In1Ok, / Validez de la entrada. /
CS_UNSIGNED16 In2 / Entrada temperatura PLC. /
) {

/---- Local Variables --------------/

/---- Comprobacion de index --------------/
PLC_CheckIndex(EQ_SDI_TEMP_SONDA_SetInput, i, c_EQ_SDI_TEMP_SONDA_MAX_OBJ);

/---- Timers -----------------------/

/---- Code -------------------------/

if (In1Ok)  {


    if (In1 == In2) {
        EQ_SDI_TEMP_SONDA[i].m_TempNOK = 0;

    } else {
        EQ_SDI_TEMP_SONDA[i].m_TempNOK = 1;
    }

/* ------------------------------------------

} else {

    EQ_SDI_TEMP_SONDA[i].m_TempNOK = 0;
}

/---- Former values -------------------------/

}

/------------------------------------------------------------
------- EQ_SDI_TEMP_SONDA_GetValue ------------------------------

CS_BOOLEAN1 EQ_SDI_TEMP_SONDA_GetValue(CS_UNSIGNED8 i) { / Devuelve el valor. /

return(EQ_SDI_TEMP_SONDA[i].m_TempNOK);

}

First you have to create a structure:
In CoDeSys you have to add to the application a "DUT: Data Unit Type". Give it a name and select Structure.
Now you can add the (standard) variables which are part of this structure.

In your POU you can add a new variable of the structure which you have created. e.g.:

aStruct: ARRAY[0..constant] OF myStructure;

In this case myStructure is the name of your new type.
aStruct is the instance of this struct.

In CoDeSys you can use the variable: aStruct[index].standardVar

I make this but isn't correct.

TYPE
EQ_SDI_TEMP_SONDA_ATT:
STRUCT
m_TempNOK : BOOL;
EQ_SDI_TEMP_SONDA : ARARAY[0..5] OF EQ_SDI_TEMP_SONDA_ATT;
END_STRUCT;

END_TYPE

You have to put the instance of the structure (EQ_SDI_TEMP_SONDA : ARARAY[0..5] OF EQ_SDI_TEMP_SONDA_ATT;) in the POU or Global Variable List. Not in the Structure itself.