Hi,
Minor spelling issue on first line of this page:
http://www.allaboutcircuits.com/vol_4/chpt_6/2.html
>We can construct simply logic functions for our...
I think the author meant to say "simple" not simply.
Second issue on the same page....
The discussion of control relay or CR1 is a bit confusing/ambiguous.
Specifically, this line:
"When the coil of CR1 (symbolized with the pair of parentheses on the first rung) is energized."
Which is the first rung? The top wire is labeled 1. However, the lowest wire could also be considered the first rung since the first rung is the lowest rung on a real ladder.
Hope that helps! Thanks for the excellent web site.
- Randy
Minor spelling issue on first line of this page:
http://www.allaboutcircuits.com/vol_4/chpt_6/2.html
>We can construct simply logic functions for our...
I think the author meant to say "simple" not simply.
Second issue on the same page....
The discussion of control relay or CR1 is a bit confusing/ambiguous.
Specifically, this line:
"When the coil of CR1 (symbolized with the pair of parentheses on the first rung) is energized."
Which is the first rung? The top wire is labeled 1. However, the lowest wire could also be considered the first rung since the first rung is the lowest rung on a real ladder.
Hope that helps! Thanks for the excellent web site.
- Randy