paulusB

MrPLC Member
 View profile  See their activity

  • Content count

    9

  • Joined

  • Last visited

Everything posted by paulusB

  1. Hello, just read an old post from you regarding sum floating points.

    " You are welcome. And just for laughs here is how to add 25 words of FLOAT [4 WORD at a time]. Note that the index register is double incremented twice, once in the +F +D instruction and immediately afterwards with an output instruction. This moves the index pointer four words for each pass of the FOR/NEXT routine. First pass D100, Second pass D104 etc. etc. SUM FLOAT.pdf Edited 29 Sep 2011 by BITS N BYTES "

    Would love to see how you solved this

  2. How to add 100 words

    paulusB replied to rjensen's topic in CX-Programmer

    where can I find the attachement? Also want to use this?

  3. How to add 100 words

    paulusB replied to rjensen's topic in CX-Programmer

    where can I find the attachement? Also want to use this?  
  4. Hello, I am looking for some help to build a linear regression formula (https://en.wikipedia.org/wiki/Simple_linear_regression). The scope is to write a function block with a variable "n". The measured "y" will be a real value. The "n" can be 5, 10, 20 or 40. In Excel I have the formula working and made function block without a variable n. I just sum the totals and do the calculations Looking for a way to easy sum the results for different "n". Not much experience with structured text. Please advice. 200727 - Regression_Test_V1.0.cxp 200727 - Regression_Test_V1.0.opt 200727 - Regression_Test_V1.0.bak 200727 - regression - v1.0.xlsx
  5. I'm building a function block to sum flow and production hous and calculate average flow based on a REAL input. For avering I use /L function. The Result R is a LWORD To get a more acurate result I want to convert the result to a REAL. The first two words of the LWORD is the Quatient in DINT The last two words of the LWORD is the Remainder in DINT How do I read out the remainder in a function block. A bit shift is nog working (NASR/NSRL) is only availabe to 32 bits,'. When not in a function block and using de D channel you simply pick the 3rd channel LWORD = D100 D100 = DINT for QuatientA D102 = DINT for remainder. m3_test.opt m3_test.bak m3_test.cxp  
  6. To calculate a walking or moving average I want to use WSFT and SUM in a function block. Does anybody have experience with this? The idea is to take a 1 hour average of a proces value and store this average value each hour. The software then have to calculate the walking or moving average over say 4 hours or 12 hours with a maxium of 24 hours. See attached files with logic but then not in a function block     Walking_AVG.cxp Walking_AVG.opt Walking_AVG.bak
  7. I totally missed the "D" instructions. Thanks
  8. Thanks for the replies. I thought 64 bit real math wasn't available in CX-programmer. But it is.
  9. Because the total amounts can become big and real then les accurate
  10. Figured it out. You have to work with arrays and move them (as discribed in the help )