Modicon Quantum 584, 600,000 register Usage

[Super Koop]

I have a ProWorx32 file that includes values entered into
the 600,000 Extended Memory Areas, but I am not seeing
the XMWT, XMRD instructions to Read from nor Write to them.

All 9 files appear to have data within them, but I do not see
any code elements to use them.

Anyone have any ideas?

It's been a good 20 years since my last Modicon.

 

[Super Koop]

If the "XMWT" and "XMRD" do not exist in code, will I need to worry about the 600,000 contents?

Is it possible for external equipment to read or write to these Extended addresses?
It appears that its even possible to wite logic within one or two of these files.

We are trying to convert this equipment over to Rockwell, and I'm concerned that this non-empty data were used somehow.....

Much too long since I've touched.

 

[Super Koop]

Correction Modicon Quantum 534, NOT 584.