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Water head, pressure, pipe diameter

Please pardon this multiple newsgroup article. I do not know which newsgroup would be the most-correct. I hang out in t...
57 comments posted 20yrs
posted by desertphile
57 comments posted 20yrs posted by desertphile

Analog I/O to DCS via Modbus TCP

I am looking for an IO system to link with a DCS vis a MB-RTU/TCP. The IO from the DCS is EXTRAMLY costly and I'd like...
3 comments posted 20yrs
posted by oren
3 comments posted 20yrs posted by oren

Temperature sensing for a heap leach

Hi All, A pilot plant is being constructed in Mongolia, which has heap leach (insulated). The intent is to monitor the...
4 comments posted 20yrs
posted by Raj_Sreenevasan
4 comments posted 20yrs posted by Raj_Sreenevasan

Reading analog inputs of Micrologix 1100

Hi, I'm new to PLC programming and am learning to use RSLogix 500 to program a Micrologix 1100 PLC. What I can't figure...
3 comments posted 20yrs
posted by ashish.sadanandan
3 comments posted 20yrs posted by ashish.sadanandan

WinCC automatic selective start-up

Gentlemen! Student calling. :-) I have this WinCC project which starts with Start.PCL, a page with two "leds" telling w...
1 comments posted 20yrs
posted by gerard
1 comments posted 20yrs posted by gerard

a discrete-time system conjecture

x(k)=ax(k-1)+b(k)x(k-n)+u(k)-------------------------(1), where x(k), a>0, b(k) ,u(k) are all scalar, n is positive int...
1 comments posted 20yrs
posted by sunshinenewton
1 comments posted 20yrs posted by sunshinenewton

[ANN] SDX Dynamic Systems Simulation Software

SDX Modeling, Simulation and Numerical Computing Environment for science and engineering has been released. Major featu...
0 comments posted 20yrs
posted by info
0 comments posted 20yrs posted by info

Rate constraining of control valves

Hi, Can anyone point me to a device for limiting the maximum rate of slew of a control valve? I'm looking for adjustabl...
3 comments posted 20yrs
posted by bxvarley
3 comments posted 20yrs posted by bxvarley

MicroLogix to CompactLogix Conversion

Hi all, I have a MicroLogix 1200 PLC program that I need to migrate over to a CompactLogix platform. What is the fastest...
2 comments posted 20yrs
posted by ekhchow
2 comments posted 20yrs posted by ekhchow

Back pressure control valve

can anyone explain me in exact what is Back Pressure Control valve with typical example.
4 comments posted 20yrs
posted by mohan.inst.engg
4 comments posted 20yrs posted by mohan.inst.engg

discrete-time system

Is there any paper studying the following discrete-time system x(k)=A_1x(k-1)+A_2x(k-2)....A_nx(k-n) where x is vector a...
9 comments posted 20yrs
posted by sunshinenewton
9 comments posted 20yrs posted by sunshinenewton

Profibus over wireless

Hey, I want to use a wireless (70 cm Band) connection for Profibus with Profisafe protocol. Has anybody used a 70 cm wir...
2 comments posted 20yrs
posted by rudolf.braeunert(at)gmx.net
2 comments posted 20yrs posted by rudolf.braeunert(at)gmx.net

RTAP Real Time Application Platform

Hello, I have an error mesage "Could only acquire sufficient Database Capacity licenses for 1536 points" while using "R...
0 comments posted 20yrs
posted by lucie.gotti
0 comments posted 20yrs posted by lucie.gotti