adccommunitymod (AutomationDirect) asked a question.

DL 450 and math functions

Created Date: October 27,2011

Created By: bob1371

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Hello, Working on a program for a height cutter and trying to make things easier for operator. Currently a cut height is entered ie. 28.500 " and a part is cut. It is then measured ie. 28.433 and the operator does the math and hopefully adds .067 " to original cut height (28.500 + .067 = 28.567) and enters the new value. I want to allow them to enter the cut height, run a test part and measure, then enter the new measured height. Let the plc do all the math for them. I need to do this out to 3 decimal places. 1. Can this work? 2. Can someone point me in the right direction? system is a DL450 plc. In the program it appears it's using the "print " command to send a value to the parker servo drive that runs the actuator. HMI is a Cmore. Thanks for any help or info. Bob


  • adccommunitymod (AutomationDirect)

    Created Date: October 27,2011

    Created by: Bob S BN

    1. Can this work?

    2. Can someone point me in the right direction?

    1, yes, I'm sure it can be done.

    2, You'll need to add another "numeric entry " button to the c-more to enter the offset value. Perhaps an "add offset " and "subtract offset " discrete buttons as well.

    In PLC add a rung;

    if (positive differential contact) "add offset " button push is on, LDD "cut length " memory location, ADDD "offset value " memory location, OUTD "cut length " memory location.

    This will add the offset value to the "cut length memory location. Make another rung like it to SUBD to decrease the cut length.

    This is a down and dirty method, but hopefully will get you started.

    Expand Post
  • adccommunitymod (AutomationDirect)

    Created Date: October 27,2011

    Created by: bob1371

    Hello,

    Working on a program for a height cutter and trying to make things easier for operator.

    Currently a cut height is entered ie. 28.500 " and a part is cut. It is then measured ie. 28.433 and the operator does the math and hopefully adds .067 " to original cut height (28.500 + .067 = 28.567) and enters the new value.

    I want to allow them to enter the cut height, run a test part and measure, then enter the new measured height. Let the plc do all the math for them. I need to do this out to 3 decimal places.

    1. Can this work?

    2. Can someone point me in the right direction?

    system is a DL450 plc. In the program it appears it's using the "print " command to send a value to the parker servo drive that runs the actuator.

    HMI is a Cmore.

    Thanks for any help or info.

    Bob

    Expand Post