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 / 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 |
how can i calibrate a smart temperature transmitter used by druck 720 process calibrator?
What is the Difference between E/P Positioner and I/P positioner in a control valve? In which applications the respective positioners are used in?
Controller not working in auto mode?...what are the problem can occur...Pls explain
Can someone give a detailed chart on the temperature ranges which can be measured by various temperature sensors.
What is the processor scan time of allen bradle control logix processor 5555 lenin lenin123us@rediff.com
What unit is used for measuring comp. outlet flow. it is CFM, M3/hr or NM3/hr. ?
What is MLFB number for Siemens?N How they are defined?Give me Answer with example like take any Signal module....
what does mean by analog output trim and where this one used for?
Name and describe at least 4 status indicators, typically found on a PLC
any body tell me ,contol valve has how many cheractristic? explain it.
How the sizing of the analog signal cable is calculate?
what is the difference between active and passive loop ?