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Elijah Charles

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  1. Ausman, Thank you for responding. The load cell is attached to/supports a roller that the paper is pulled over as it moves through the line and just before it gets rolled onto the drum. I attached a crude illustration to help with my explanation.
  2. Flex727, Thank you for explaining the input addressing to me, things are starting to make a lot more sense now. Ausman, I am referring to the Vision 130-J-B1 PLC (listed as the V130-33-B1 in the Hardware Config. in the Visilogic software); my apologies for not including those details. Unfortunately, I do not have information on the kHz rate for the sensor at the moment; I will have to ask my boss for this and will update you when I have that number. I have looked through the online manual for the DI8-T08 expansion module and am aware that the HSC is located on I7 and the reset on I6. What are the limitations for the HSC you are referring to?
  3. Hi all, I have a brief question concerning a project where I am using the v130 vision controller and a load cell to control the RPM of a drum that makes rolls of paper. I am attempting to do this using PID control where my load cell provides the process value while the drum is running (I have to keep a certain tension (# of lbs) --my set point-- on the paper as it is pulled off of a line and rolled onto the drum). Can I get my PID to speed up or slow down the drum RPM in order to maintain my desired tension? In my attached program my PID function is under the subroutine "PID Control" much thanks in advance for any help Paper Roller Inclinometer Project.vlp
  4. Also, I am using a v130 controller with the external EX-A2X expansion adapter and Unitronics IO-DI8-R08 expansion unit. I have also completed hardware configuration for the HSC on address "I38,39" but do not understand why this address is used? The expansion unit only has inputs 0-7.
  5. Hi all, I am a fairly new and inexperienced programmer when it comes to using Visilogic software; my experience lies more in implementation of the Unilogic/Unistream line of software and controllers. Because of this, I wanted to ask if someone could show me how to write a simple subroutine for a high speed counter using the Visilogic software. My current project involves using a digital input that produces square-wave pulses and I need to use these pulses to make the HSC count how many feet of paper are rolled onto a drum as they come off a product line. I would also appreciate it if someone who has done a similar project could share their code with me as well if it was done using Visilogic software. Best and thanks for the help.
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