Interested to Buy Any Domain ? << Click Here >> for more details...
In RTU Panel we are having several Analogue & Digital
Inputs /Outputs. We are recently facing some problems over
Analog inputs , which are not updating properly (But
Digital Input are updating normally) Can any one tell me
from where the problem is creating , we have checked PLC
CPU card, Analog Input card & we reconfigured ,But still
the issue is there.
Issue :
1. Sometimes Analog values are updating & sometimes not.
2. Analog values are not updating normally , showing some
wrong Values
3. Total dead (0 value)
Analog values are Level & flow measurement from the field
instruments.
(But in field the instruments are working normally &
Displaying the values normally in local display unit)
This problem we are facing in our Water Plant.
If any one experienced this same problem or having any
ideas related to our issue PLS send your valuable
Answers/Replies...
- 6 Answers
- 8719 Views
- L&T, I also Faced
- E-Mail Answers
Answer Posted / manunath
hi....
there may be chance of two problem
1.problem with scaling of signal or
2.check the system earth ie AI module earthing...some
time it will create problem..
thank u
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
Any body have know try work calculation ???
What is the diffrence between ff tx and non ff tx
how works encoder in plc
applications of plc in printing and packaging?
Why do we floating DC in DC system.
line up procedure for dp type flow transmitter?
Operational amplifiers
Q- What are the application in which PNP transistor is preferred over NPN ?
why we use cascade control and feed forward control in 3 element drum level control measurement of steam drum .what is cascade and feed forward control system ?give example .
dear friends, i have seen flow as the selection critriea in presure guage (bourdon tube) and i would like to know what is the relation between flow and performance of pressure guage other parameters i found in the data sheet are pressure max. 1ksc temperature max. - 50 deg c line size - 80NB operating range - 1ksc pr. guage range - 0-2 ksc thank u,
How is flow measured in square root?
why we take %i0.0 as input for twido plc
how many type conductivity sensor ?
A length of steel pipe is used to carry sea water to a desalination plant. An adequate corrosion allowance must be specified and indicated in the piping specification, which affects the _________________________ of the pipe
Difference between dcs and plc including date processing and architecture.
