Downgrade from 800xA 5.1 Rev D to 5.1 Rev B (AC800m Connect)
Hi, I am trying to downgrade from 800xA 5.1 Rev D to 800xA 5.1 Rev B on AC800m Connect.. Control Structure backup also imported sucessfully, but while opening the project in control builder the attached error is appearing... kindly help me to solve this error on downgrade...
Br, Prabhakaran D
Voted best answer
There is no official path for downgrading the software - mainly because nobody wants to deal with unexpected issues like this.
The error message indicates that a new attribute has been added to variables in the source code. The older compiler cannot recognize this, and hence you get a source code error.
The source code for an 800xA system is not directly available as XML so you cannot simply open the source code and edit it ( like you would in CCB) You **might** be able to open the source code using the Control Builder open interface and a bit of VBA and XML manipulation could possibly remove this attribute ( and possibly not )
Of course, you kept a backup of the old system didnt you. Use that.