what is scan time of PLC & in which factor scan time is
decide
Answers were Sorted based on User's Feedback
Answer / mprajaneb
Scan time depends on PLCs. In the timing diagram of PLC
execution we have three different times.
1. Input scan time
2. Execution time
3. Output scan time.
Input scan time the PLC receiving the data status from the
input peripherals.
Execution time is the time required to execute the program
or for scanning the rungs in PLC program.
Output scan time is the time required to send the results
to the output devices as per the execution of the program
rungs.
Is This Answer Correct ? | 14 Yes | 1 No |
Scan time vary based on PLC models. Scan time means scannin
of ladder rungs in PLC program ( ONE time) for all the
rungs.
Is This Answer Correct ? | 5 Yes | 4 No |
Answer / sanjana singh
scan time in plc is 10ms.
it depends on the length of programme.
Is This Answer Correct ? | 0 Yes | 2 No |
What happen to alternator if prime mover fails?
what is the term of desruptive voltage
5 Answers Bhel, Energy Infratech,
what is bus pt and what is the function of it ???
how to select the automotive wire size by mathematical calculation. for xenon headlamp with ballast. the ballast given data voltage 10-17v,current permenant 6amp, run up phase is 15amp, peak at swicth on max 400micro sec is 40amp.the sum of cable resistance is 150mohm.please provide referenc document if any for relating the peak at switch on current,time & wire wire size
Hi everyone. Some Generators uses 3-Pole breakers with extra contactors for Neutral. Some uses 4-Pole. Why so? What is the idea behind this? Thanks in advance for the solution. Kr.
how can we judge the percentage of load on the basis of temperature differences readings between WTI and OTI in a transformer
On 400 amp factory load how kvarh capacitors provide
Why r use in the tap changing x' mer.
if there are six generators (3 gas CATT, one Jenbacher o1 MW each, and two nos Diesel 01 no 01 mw other 0.65mw EDGs ( say), 3 CAtt gas set have identical pole pitch,01mw EDG and Jenbacher gas Set have different pole pitch, how their power connection can be done to connect a common bus bar during installation. in short, how different pole pitched generators power connection can be done to connect a common busbar system through generators incomer ACBs.
11 kg trivevter meter has rating of -/5amps. And pt ratio11000/110v and is connected with 11kv ct/pt unit of cr ratio 75/5amps. And pt ratio of 11000/110v while checking accuracy of meter with HT Accuchek meter what value of PT ratio and CT ratio to be filled in Accuchek meter
what is breaking capacity
What is meant by positive and negative feedback?