FX-EEPROM-16

[Ladislav 0]

I need to load different program to eeprom cassete FX-eeprom-16 in my PLC FX2n-48MR using GX Developer ver8.

After writing different program to eeprom cassete in PLC controller it finish writing complete.

But verifying program show that programm in eeprom did not change.

Protect switch in cassete is of.

PLC has cleared program.

 

 

[gclshortt 51]

http://www.plctalk.net/qanda/showthread.php?t=3221

This thread may help you out.
Regards,
Garry

[Crossbow 295]

Do not ever remove the memory card while the PLC is powered up.

When the unit powers up, if the memory card is present, it is used, and any download or upload will be to the memory card.  The memory card program will run.

If the unit powers up without a memory card, it uses its internal program, and any download or upload is to the internal memory.

It's EEPROM, so it should be able to be rewritten if the protect switch is off.

[Ladislav 0]

Thank you for feedback. Still I can't download different program, the protect switch is off.

How to erase EEprom?

[Crossbow 295]

The software will erase the EEPROM when you download to the controller.