Hi guys, looking for a syntax to index-addressing of Source/Target addresses with specified length, for e.g. MOVE, like this.

P#DB[#dbnr] DBX0.0 WORD 2

Not work..😐

I have the right dbnr by L DINO, also try to convert it (DB_ANY) to diff. datatyps, can not find the correct syntax to accept it as Index. (My Instance DB is not optimized of course)

Is it possible to address and move (own)Static-areas with specified length in FB at all?

Work with CPU1500, TIA 19, STL.

Thank You.

//Stefan

I do not get Your point.. or You did not get my question?

Do You have some exempel?

//Stefan

If somebody interested about this:
Now I made a researching for “my issue”.

"Is it possible to address and move (own)Static-areas with specified length in FB at all?"
e.g. P#DB[#dbnr] DBX0.0 WORD 2  or just  P#DBX0.0 WORD 2 (CPU 1500 TIA19 )

The simple answer is no.

In 1500-environment TIA does not allow specifying Source/Destin. address-lengths for Static-areas in FB. Only for extern DB or for Local VAR.

This even valid for DPRD_DAT / DPRW_DAT for connected devices. But the Inst.DB-areas must have equivalent sizes as the connected partner have, see picture. Otherwise error-msg triggs.

I also compared the functions with 300CPU. Same TIA, same SFC-version, same DB-structure.

There is request for specified length of Source/Destin. or Read/Write areas even for Instance DB:s.

According Support: “A 1500CPU "knows" about the connected parts configured Transmit-areas.”

That's the reason. 🙂

// Stefan