Forums.MrPLC.com > Making a formula in RSLogix5

Full Version: Making a formula in RSLogix5

Forums.MrPLC.com > PLCs and Supporting Devices > Allen Bradley

mulderm

Nov 20 2006, 02:58 PM

Hello,

I have a formula: y = -0,36x + 610

How must I program this in RSLogix5 without using Floating Points
but using integers?
Example: x=N7:0 and Y=N7:1

mulderm

newpageboba

Nov 20 2006, 04:10 PM

if x is N7:0 (integer)
and y is N7:1 (integer)

CPT N7:1 (-0.36 * N7:0) + 610

Ken Moore

Nov 20 2006, 04:53 PM

QUOTE(newpageboba @ Nov 20 2006, 04:10 PM) [snapback]44005[/snapback]

if x is N7:0 (integer)
and y is N7:1 (integer)

CPT N7:1 (-0.36 * N7:0) + 610

Since you have two varibles and only one equation, which one will you be solving for?

The example newpageboba posted is for solving for y, if you need x, it will be different.

Alaric

Nov 20 2006, 04:58 PM

Or, for a pure integer solution:

CPT N7:1 (36 * N7:0 | 100) + 610

OR

MUL N7:0 36 N7:100
DIV N7:100 100 N7:100
ADD N7:100 610 N7:1

I'm not sure why you would insist on using integers as the PLC5 supports floats.

mulderm

Nov 21 2006, 12:05 PM

Thank you for the information.

mulderm

This is a "lo-fi" version of our main content. To view the full version with more information, formatting and images, please click here.