buzgibi Member B Join Date Jun 2009 Location turkey Posts 48 Jan 13, 2014 #1 Have you any idea for standard deviation in SLC 500 PLC ?
James Mcquade Member J Join Date Oct 2007 Location Nashville, Tennessee area Posts 3,695 Jan 13, 2014 #2 buzgibi, you did not say which plc, but google standard deviation, look at statistic books and find the formula(s). you should be able to get it to work that way. regards, james
buzgibi, you did not say which plc, but google standard deviation, look at statistic books and find the formula(s). you should be able to get it to work that way. regards, james
jvdcande Member Join Date Apr 2002 Location Menen Posts 2,178 Jan 13, 2014 #3 buzgibi said: Have you any idea for standard deviation in SLC 500 PLC ? Click to expand... Yes, using the calculation instructions from SLC500 in combination with the information on http://en.wikipedia.org/wiki/Standard_deviation
buzgibi said: Have you any idea for standard deviation in SLC 500 PLC ? Click to expand... Yes, using the calculation instructions from SLC500 in combination with the information on http://en.wikipedia.org/wiki/Standard_deviation
buzgibi Member OP B Join Date Jun 2009 Location turkey Posts 48 Jan 13, 2014 #4 plc model is ab slc 5/04. There is no command for standard deviation . And i wrote it in ladder but there is too many constant and indirect adress.
plc model is ab slc 5/04. There is no command for standard deviation . And i wrote it in ladder but there is too many constant and indirect adress.
Lancie1 Lifetime Supporting Member Join Date Jul 2003 Location Alabama Posts 9,999 Jan 14, 2014 #5 Using a SLC 5/04, which has file word lengths of 256, you need to limit your "population" to 256 maximum. However you should have enough room to calculate any standard deviation of any population up to 256. Last edited: Jan 14, 2014
Using a SLC 5/04, which has file word lengths of 256, you need to limit your "population" to 256 maximum. However you should have enough room to calculate any standard deviation of any population up to 256.
OZEE Member O Join Date Mar 2006 Location Kansas Posts 1,696 Jan 14, 2014 #6 It would probably be better to do that calculation in your HMI/SCADA