I am getting the UM REad Protection Message when trying to upload or edit a progam on a CS1.
We have not put in password protection, and can only think somehow a lightning strike has caused this.
Does anyone know how to overcome this when you do not have a password.
This is a PLC I have edited many times, so a real scratchy head moment at present.
Thanks in advance for any help anyone can give.
Cheers
Nick