RS485 For Hypertherms

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06 Sep 2019 03:43 - 06 Sep 2019 05:25 #144311 by phillc54
I am looking at making Pedro's HPMX RS485 component available with PlasmaC.

In the Cut Parameters in the Run Panel we should add some optional parameters:
  • Gas Pressure
  • Cut Mode
Cut Amps already exists.

While doing this should the Torch Off Delay which is currently in the Config Panel be moved to Cut Parameters in the Run Panel.

Edit: What gas pressure range is required?
Last edit: 06 Sep 2019 05:25 by phillc54.

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06 Sep 2019 06:10 #144319 by pl7i92
Replied by pl7i92 on topic RS485 For Hypertherms
we here use at the Hypertherm 45 as well as the c-50
a range from 0,4-1,4 BAR // 2,5psi-25psi shoudt be good for me
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06 Sep 2019 07:49 #144338 by rodw
Replied by rodw on topic RS485 For Hypertherms
I think you can query the Hypertherm to attain the available gas pressure range. Do you have the relevant docs Phill? I can find them if you don't.

I kinda think the delay should be a cut setting as different thicknesses would need different delays
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06 Sep 2019 08:57 - 06 Sep 2019 09:00 #144344 by tommylight
Replied by tommylight on topic RS485 For Hypertherms
What the ..... pressure ???
Cutting pressure never is under 5 Bar, bigger Hypertherms will not start with anything under 7 bar.
Recommended for small ones 5 to 5.5 bar, most will stop working at 4 bar.

If this is about cutting pressure, PL7i92 please edit the above post.
If it is not, sorry for the mess and i will delete this post.
Thank you.
Last edit: 06 Sep 2019 09:00 by tommylight. Reason: more info
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06 Sep 2019 09:12 #144347 by rodw
Replied by rodw on topic RS485 For Hypertherms
Just confirming you can query the machine via the RS485 interface to obtain the minimum and allowable pressure so that sets the limits as it could vary from model to model.

RS485 protocol docs are attached.

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06 Sep 2019 09:28 #144351 by phillc54
Replied by phillc54 on topic RS485 For Hypertherms
I don't want to change the component too much, I am really just looking for sane minimum and maximum to have in the spinbutton. I don't think I will even show the feedback values as there is not much real estate left. It would be nice if we could have conditional GladeVCP panels.
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07 Sep 2019 04:30 #144448 by phillc54
Replied by phillc54 on topic RS485 For Hypertherms
Would anyone happen to have an Arduino sketch that emulates the serial modbus port of a Hypertherm PM XP ???

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07 Sep 2019 22:40 #144496 by tommylight
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07 Sep 2019 23:03 #144497 by rodw
Replied by rodw on topic RS485 For Hypertherms
Phill, also there are Modbus Ascii emulators that run on Windows or Linux. have a google.

Also, I think the pressures are mentioned in the manual for different types of cutting.
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07 Sep 2019 23:10 - 07 Sep 2019 23:13 #144498 by phillc54
Replied by phillc54 on topic RS485 For Hypertherms
I am having trouble communicating with the hpmx component so i was hoping to emulate a PM XP to have a look to see what is happening.
In the Hypertherm docs they mention a CR/LF at the end of transmission from master to slave but when they mention the reply there is no CR/LF. Is this correct?

Edit: Hey Rod I see one of Toms links is from your neck of the woods.
Last edit: 07 Sep 2019 23:13 by phillc54.

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