I've recently started PLC programming (learning it as part of my new job in controls), and I've noticed it is common practice to buffer your inputs and outputs in your process to a controller tag/variable.
From what I've gathered, this acts as both a safety measure (if I/O devices fail?) as well as ensures operations that depend on sequences of events occur properly.
Could someone elaborate, or enlighten me if I have the wrong idea?
Thanks!
From what I've gathered, this acts as both a safety measure (if I/O devices fail?) as well as ensures operations that depend on sequences of events occur properly.
Could someone elaborate, or enlighten me if I have the wrong idea?
Thanks!