Just in case anyone cares... What I did was use four compares and four moves.
For the high select, I have two rungs; rung 1 comares A to B, if greater the move puts the A value to a new address (N33:27). Rung 2 compares B to A, if greater the move puts the B value to the same new address...
Hello,
I need to compare two analog values and store the high or the low value. Does the PLC5 have an instruction like this? If not are there any other ways to determine the high or low value of two analog values?
Thanks,
Lou
Interesting idea...
I should apologize... I should have started this thread with more information. I don't think I could seal this concrete manhole well enough to have steam pressure buildup enough to push the water out. There is a 20" casing with a 12" steam line and a 6" condensate line...
Hello TenPenny,
Thanks for the response. Your suggestion is appreciated. Unfortunately we tried that and the minerals in the water baked to the pump forming a large clump of calcium and other minerals.
Just in case anyone else is reading this thread. I'm also interested in a level detection...
Thanks Mike,
All very good suggestions. We did sink a manhole adjacent to one of the manholes. However due to easement restrictions along the street the adjacent hole had to be fairly close and the water was still very hot. This is Canada and there is never snow above this steam line.
I will...
Hello,
I would like to hear from other people who may have experience operating a submersible pump in very hot conditions.
My application is a submersible pump installed in a steam distribution manhole. The manhole fills with ground water and is heated by the steam line. Temperatures above...
