I am an electrician… for a long time. I was the relay guy. In the mid 1980’s, we began using PLC’s. PLC, PLC2.
The programming faceplate decided on at that time was LADDER LOGIC.
This request is to NOT stir debate on what programming language face-plate should be prevalent, enforced, standardized, taught, to the upcoming 2020 engineers of today. (Moving forward)
One of the key benefits of still clinging to our archaic ladder logic is the graphical “GREEN LIGHT” when TRUE logic flow through, and instant graphical visual diagnostic as to what is missing to complete the “rung”.
Albeit, every BOOL instruction is GREEN when true, if mathematical analog compare instructions appeared on the logic line, the user would have to mentally determine if the compare was true or not to de-bug.
My simple request after these some 30-ish years, could our friends at Rockwell Automation make a simple graphical GREEN modification to the graphics when a mathematical compare instruction were true. EQU, NEQ, GEQ, LEQ, LIM, GRT, LES, etc.
Or is Structured Text better for de-bug.. If TAG1 > TAG2 Then ..? Is there instant graphical indication? Or does one need to mentally re-process the mathematical computation for each IF comparison to determine logic continuity or truth?
Thank You
Plastic
The programming faceplate decided on at that time was LADDER LOGIC.
This request is to NOT stir debate on what programming language face-plate should be prevalent, enforced, standardized, taught, to the upcoming 2020 engineers of today. (Moving forward)
One of the key benefits of still clinging to our archaic ladder logic is the graphical “GREEN LIGHT” when TRUE logic flow through, and instant graphical visual diagnostic as to what is missing to complete the “rung”.
Albeit, every BOOL instruction is GREEN when true, if mathematical analog compare instructions appeared on the logic line, the user would have to mentally determine if the compare was true or not to de-bug.
My simple request after these some 30-ish years, could our friends at Rockwell Automation make a simple graphical GREEN modification to the graphics when a mathematical compare instruction were true. EQU, NEQ, GEQ, LEQ, LIM, GRT, LES, etc.
Or is Structured Text better for de-bug.. If TAG1 > TAG2 Then ..? Is there instant graphical indication? Or does one need to mentally re-process the mathematical computation for each IF comparison to determine logic continuity or truth?
Thank You
Plastic