Steve Bailey
Lifetime Supporting Member + Moderator
Received the following from shah2006 via PM.
Most likely reason for the error is that the PLC was programmed with something other than Logicmaster. You should get Proficy Machine Edition software and retire Logicmaster. GE retired it long ago.We have 90-70 PLC and logicmaster v7.02 software. I was trying to backup software to my desktop and got an error " <U77> PLC program uses instructions not supported by folder or current release". We couldn't take backup. I tried to change IP address from configuration as a part of upgrade project, I got communication error. I tried to change IP address by using serial communication and through ethernet port and I got same error. Can you please send me your contact information or reply me? Thanks Hiten Shah