defcon.klaxon
Lifetime Supporting Member
Hi all,
Well, here I find myself at a former client after I left water treatment trying to help him get the plant back up and running after a snow storm and severe electrical damage.
Long story short, the water tanks use Endress & Hauser PMP71 pressure gauges to infer level. We replaced a damaged one and on the local readout we do see level info, but no 4-20mA at the PLC. I moved the signal to an unused analog input in case the input we were using before was damaged, but no dice.
I was wondering if these level sensors are set up to provide 4-20mA signal directly from the factory, or if that has to be set up. Checking the E&H website, it's the classic situation of hundreds of documents but none seem to be helpful.
If anyone could help I would be greatly appreciative.
Thanks!
Well, here I find myself at a former client after I left water treatment trying to help him get the plant back up and running after a snow storm and severe electrical damage.
Long story short, the water tanks use Endress & Hauser PMP71 pressure gauges to infer level. We replaced a damaged one and on the local readout we do see level info, but no 4-20mA at the PLC. I moved the signal to an unused analog input in case the input we were using before was damaged, but no dice.
I was wondering if these level sensors are set up to provide 4-20mA signal directly from the factory, or if that has to be set up. Checking the E&H website, it's the classic situation of hundreds of documents but none seem to be helpful.
If anyone could help I would be greatly appreciative.
Thanks!