Hello,
I'm new on Unitronics plcs, usually I work most of the time with Siemens and Schneider plcs. So I created a new unlogic project using the Pre-defined operands" option, I get eventually several bits arrays areas like MB (memory bits array) and XB (X bits array) but I don't understand what's the difference between them, I can't find something about it in online help. I'd like an explanation about those areas, thanks.
JC