Read serial number or MAC address

Hello,

Is it possible inside CPU programm to read data specific for exact Logo! CPU , e.g

serial number or MAC address?

My customer want open source code from me, but I want to prevent from copy my application to another module.

 I hide in my programm comparsion for specyfic MAC address and will make blockade when both value aren't equal.

Thank You for help.

Thank You for response.

I need to prepare program. Before last download I need to read some value from PLC, witch is specific for this particular device, and can be read in PLC programm.

I put this value to programm in project and download to PLC.

If value read from module and put inisde program are equal everything in PLC works.

Then I give open source code of PLC programm to customer.

If he want to download my project to another LOGO!, value store in project and value in new PLC shouldn't be equal and some function of programm will be switch of.