If you SOURCE your outputs from a PLC, would you have to make
the output HIGH, or LOW, in order to switch an output ON?
Answer Posted / george mathews
It is always high. Because high signify (1) and low signify
(0). So when we excite (1) our input then only we can get
our out put.
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
Boolean algebra
Why flow/pressure transmitter before control valve?
Why ac supply load cell is used? Can we use the dc supply load cell?
In turbine what does term CDP, NI, NH, HSSOC means.
What is difference between “Fault Tolerant” & “Fault avoidance” PLC? Application where these system s are used?
what is KV and XV valve
Explain the key components of control loop?
May I have a brief note above the voltage barriers? Whats is the purpose? Please mail me if you've operational details, mail id: rajkumar.diice@gmail.com
Explain PID, ON/OFF, Controls
Can anyone send most commonley asked Instrumentation questions and answers in cement industry please?
why Fahrenheit unit of moistur analyzer transmitter
how pressurize drum calibrated ?
what effects a surging can produce in the compressor
I need control valve ISA hand book. Is there any site to download that big book containing all the pages. Written by Paul Friedmann
diff between neutral ,ground,phase , earthing and shielding?