hi there

Question?
Is it possible to create en plc function object(PlcHR92Fo1) and integrate a c-code object(PlcHR92Fo)
in the plc function object.

example:




and how to connect:
PlcConnect
PlcNode


Cees

Hi Cees,
Yes I suppose it's possible.
See Documentation, Designer's guide.... class editor.
/Ben

Hi Ben

I have try some connection but it won work

I Have a C-Code Function Object(Fo) PlcHr92Fo. It's a working object if u use it in
a normal program.

I have create a new Fo PlcHR92xFo This is a Plc-coded Fo.






In this Fo i used PlcHr92Fo but i can't connect PlcConnect.







How can a create a connection to PlcConnect?



cees

Hi cees,

There is no user friendly way to do this. You have to insert it manually in the object editor. PlcConnect should be of the form $PlcMain:'classname'.'attribute'. The easiest way is to copy from a GetDp or GetDv and replace the 'attribute' part.

/Claes

Hi cleas

I've connected PlcConnect :

$PlcMain:CVolEvoProj-Class-BaseHR92.PlcConnect

Now next error i get:



In the source c-code i have a working init code (check the connections):


/*_*
@Aref PlcHR92Fo_init PlcHR92Fo_init
*/
void PlcHR92Fo_init(pwr_sClass_PlcHR92Fo *o) {
pwr_tDlid dlid;
pwr_tStatus sts;
sts = gdh_DLRefObjectInfoAttrref(&o->PlcCo
can you give met solutionnnect, (void **) &o->PlcConnectP, &dlid);
if (EVEN(sts)) {//error
o->PlcConnectP = 0;
printf("PlcConnectP not connected 1 PlcHR92Fo %d\n", sts);
} else {
pwr_sClass_BaseHR92 *co = (pwr_sClass_BaseHR92 *) o->PlcConnectP;
if (!co) {//error
printf("PlcConnectP not connected 2 PlcHR92Fo \n");
} else {
pwr_tAName AttrName;
sts = gdh_AttrrefToName(&co->IoConnect, AttrName, sizeof (AttrName), cdh_mName_pathStrict);
if (EVEN(sts)) {//error

printf("IoConnect not connected 3 PlcHR92Fo %d\n", sts);
}
}
gdh_DLUnrefObjectInfo(dlid);
}
}


When I start the system i get the message "IoConnect not connected 3 P.......

For some reason the IO connection is not working..


Can you give met solution.....


cees

Hi cees,

Your BaseHR92 is an attribute in a larger object, isn't it? Let's say the larger class is named BaseX and it contains an attribute of type BaseHR92 named HR92. Then PlcConnect for BaseHR92Fo should be

$PlcMain:CVolEvoProj-Class-BaseX.HR92

As the BaseHR92Fo appears in the BaseXFo code, $PlcMain here points at the BaseX object, and you should point out the BaseHR92 attribute in this object.

/Claes