RobotStudio event

System Builder error when importing Fieldbus adapter

Hi,

I have an older IRC5, RobotWare 5.15 and need to add the 840-1 option. Received the key string from ABB but when trying to import it as new option in the System Builder I get the following error


'The selected key is not used with any additional program in the current media pool. Please enter another key or browse for another key file'


Any ideas?