PLC-function Block Programing
PLC-function Block Programing
(OP)
Just started using Crouzet PLC function block programming. I have the basics but I am having trouble writing a step that uses a 4-20mA signal (ultrasonic tank level sensor)and calls via modem when the level drops below a fixed level after it begins to fill. This would only happen due to evaporation or a leak. The process is a batch process so the tank should never decrease in level until it is processed by the operator.
thanks to anyone that can help.
thanks to anyone that can help.






RE: PLC-function Block Programing
The phrase "should never" should never appear in your documentation of the software.
E.g., when a tank fill valve opens, it is possible for the incoming flow to disturb the surface in such a way that the level seen by a transducer will go down, as in a standing wave.
Mike Halloran
Pembroke Pines, FL, USA
RE: PLC-function Block Programing
RE: PLC-function Block Programing
TTFN
FAQ731-376: Eng-Tips.com Forum Policies
RE: PLC-function Block Programing
RE: PLC-function Block Programing
RE: PLC-function Block Programing
TTFN
FAQ731-376: Eng-Tips.com Forum Policies
RE: PLC-function Block Programing
I'll check it out.