chrisb4748

Extended File Registers

3 posts in this topic

Posted (edited)

Hi,

We have extended file registers ZR0 – ZR128000 currently in PLC (IQR CPU R32).

There is vital information in this area.

We need to change the file size of this to ZR0 – ZR500000 in parameters. When we do so, vital data is lost. There is 600k spare in the CPU/SRAM to accommodate the extra registers. Changing the size using the simulator works fine.

Is there a procedure for changing the ZR Register File size and maintaining the current data?

Many Thanks,

Chris

Edited by chrisb4748

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Just read them with GX Works 3. Change the File and write them back.

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Posted (edited)

In GX IEC Developer there is the option in ‘Device Edit’ to export any range of MELSEC variables to a .csv file.

You could do this (export)..make the parameter change- then write back in?

Edited by collinsd70

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