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Author Topic: HO-CTRIO CUT TO LENGTH PROJECT  (Read 2304 times)


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« on: August 06, 2013, 02:16:50 PM »
I have a DO-05AA plc and a HO-CTRIO module and I am trying to implement a cut to length application with a quad encoder.I would like to use the y1 output to slow the dc drive down, prior to the cut, and the y0 output to activate the cut.
I have a variable input from a C-More screen to vary the length.
Do I have to enable the outputs (0,1) in the plc code?  Also to reset the count is an issue since I cannot hard code this in the preset table.
Thanks in advance.


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« Reply #1 on: August 13, 2013, 10:31:43 AM »
Hi Donaldb

Sorry for the delay. :( You could use two Preset Tables, loading one for Y0 output and the other for Y1 output. The Preset Tables need to reflect the length at which you want to fire the Y1 output to slow the drive down, and the Y0 output to trigger the cut at a higher value.

I'm assuming you know how to use the CTRIO IBoxes. Generally speaking:
- Configure two Preset Tables in the CTRIO using CTRIO Workbench; one for when to slow down; one for when to cut.
- Use the CTRIO IBox (IB-1000) at the top of your ladder logic to point to the H0-CTRIO.
- Use two CTRLDPR (IB-1001) to load the Preset Table for each CTRIO output (Y0 & Y1).
- Enable the outputs (SET the Enable Output bit for each output).
- You can reset the quad encoder count either from the Preset Tables or from the Reset Count bit, or trigger it from one of the CTRIO inputs
- You can edit the Preset Table trigger point values on-the-fly by using CTREDRL (IB-1002).
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