iFix & RSLogix500: Looking to simplify array conversion

Divinitous

Member
Join Date
Nov 2015
Location
NY
Posts
8
Very often I have to reverse engineer something from an iFix parameter inside an array to a bit in iFix. It's a pain to do as I've yet to really get it down pat and I find myself countings bits until I get to where I need to go.

Here's a deal. There's an array in iFix that is say Digital1 which starts at B13:0 inside the PLC. One such parameter refences the 27th bit inside this array. So here I am, starting at B13:0/0 and counting up 27 bits to get the value. My method is...

27 - 16 = 11
B13:0/0 + 16 = B13:1/0
B13:1/0 + 11 = B13:1/ and the 11th bit which I presume is B13:1/10 (starting with zero messes me up at times)

Sure, this method isn't so terrible. But when I have to do 20-30 of these all withing random areas it gets time consuming.

Has anyone found an online converter or an excel sheet to make this easier?
 
Pretty easy to create indexing in Excel with basic cell formulas, attached is a screen shot of one I made for PV+ alarming.

Capture.jpg
 
In RSLogix 500 you can change the view options to let you look at bit addresses in a form that better matches the iFix address. Right click on the ladder background, slick Properties, look at he tab called "Address Display". In the binary bit display mode, you can select "/Bit" instead of "Word/Bit".

Also, even without changing the view options, you can enter B13/27 in a data view or a search field and the software will convert the address for you and jump to the proper bit.
 

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