That's good, thanks for taking the time to test it. Did you use the lcnc 
version or the old mk version?

it'll be a bit before my setup is ready to try it. I suppose by then it 
will be pulled into the mk-hal repo and a simple update will will install 
it?

On Sunday, December 29, 2019 at 11:17:14 AM UTC-5, [email protected] wrote:
>
> OK, 
> an arduino found, packaged example code tested and it looks like it is 
> working. So simple copy&paste solution. 
>
> Still have no idea why it was deleted from machinekit-hal package. 
>
> Cern. 
>
>
> Dec 28, 2019, 21:11 by [email protected] <javascript:>: 
>
> > Hmmm..., 
> > 
> > simple Ctrl+C, Ctrl+V from LinuxCNC repository to Machinekit-HAL 
> repository seems to work (at least it compiles and so something, I have 
> nothing for extra quick test [would have to find my arduino]) - 
> https://github.com/cerna/machinekit-hal/tree/import-mb2hal-from-linuxcnc 
> . Even the include command in src/Makefile was still there. 
> > 
> > Cern. 
> > 
> > 
> > Dec 28, 2019, 18:22 by [email protected] <javascript:>: 
> > 
> >> A commit a year ago in MK legacy addresses something with libmodbus. 
> >> 
> https://github.com/machinekit/machinekit/tree/master/src/hal/user_comps/mb2hal
>  
> >> 
> >> I don't know that I was asking specifically about LinuxCNC's version 
> unless there is a more recent change that matters. The version that was in 
> MK is probably fine if it's useable. 
> >> 
> >> On Saturday, December 28, 2019 at 12:10:25 PM UTC-5, [email protected] 
> wrote: 
> >> 
> >>> Well, looking at the mb2hal in LinuxCNC repository, I - at first 
> glance - don't see any reason why it should not work in the Machinekit 
> (maybe with some simple and generally automatic code changes). 
> >>>   
> >>> So I would really like to know the reason behind removing it. I think 
> (trying to remember) that there was some issue with the libmodbus library 
> and Debian package which mb2hal is wrapper around. 
> >>>   
> >>> Cern. 
> >>>   
> >>>   
> >>> Dec 28, 2019, 16:40 by >> [email protected] <>>> : 
> >>>   
> >>> > Just navigating the split repo directories, "user" comps still exist 
> in the typical directory of MK-hal, tho mb2hal is missing. Nothing like 
> that seems to exist in MK-CNC so I assumed the MO was to keep the user 
> comps in MK-HAL as is. mb2hal also works over serial which aside from Mesa 
> smartserial I don't think has ever been considered "RT" in linuxCNC likely 
> because of baud rates. While I'm sure RT modbus is probably quite useful I 
> don't think the main use for it is usually RT critical. Generally it would 
> take the place of other serial protocols with the convenience of TCP as 
> well for interfacing with something else that is running faster at a 
> hardware level, like talking to a VFD or commanding a servo drive. I think 
> getting it in there in it's current form if possible is probably more 
> important than addressing RT changes, which could always be added later I 
> suppose.  
> >>> > 
> >>> > On Saturday, December 28, 2019 at 9:50:53 AM UTC-5, >> [email protected] 
> <>>>  wrote: 
> >>> > 
> >>> >> I remember that there was some problem with Modbus module which I 
> thought was solved by ArcEye. (Maybe he will chime in.) But given that it 
> was the so called "userspace" component, it would be in machinekit-cnc, not 
> machinekit-hal. But it doesn't look like it is there. 
> >>> >>   
> >>> >> The problem with mb2hal is that it presents itself as a 
> non-real-time component (Modbus is generally considered as a non-RT), but 
> as far as I know the Modbus RTU can be used in RT, the TCP because of inner 
> working of TCP communication cannot. 
> >>> >>   
> >>> >> Given the "RT" and "userspace" components definition in Machinekit 
> is a prehistoric vintage from LinuxCNC which outlived it's usefuness, maybe 
> it is time to have something capable both of RT and non-RT functioning. 
> >>> >>   
> >>> >> I am planning something for which I will need the modbus 
> communication, problem is, I plan in years. 
> >>> >>   
> >>> >> Cern. 
> >>> >>   
> >>> >>   
> >>> >> Dec 28, 2019, 02:36 by >> >> [email protected] <>>>  <>>> : 
> >>> >>   
> >>> >> > Maybe a slight misunderstanding as I just realized mb2hal does 
> exist in the (legacy?) MK repo but is missing from the mk-hal split repo as 
> is a couple other user comps. 
> >>> >> > 
> >>> >> > I'm not requesting a special lcnc flavored mb2hal, As modbus is a 
> protocol I would expect a working modbus component to work generically. 
> What I'm asking is is there a particular reason it's not in the split repo? 
> If it fails to build for whatever reason I'm sure I'm not the person anyone 
> wants modifying the code and PR'ing it. I could however help test it. 
> >>> >> > 
> >>> >> > On Friday, December 27, 2019 at 6:50:45 PM UTC-5, Michael Brown 
> wrote: 
> >>> >> > 
> >>> >> >> As things are currently I'm certain that if you convert any 
> "simple" existing mk userspace component and replace the functional code 
> with 
> >>> >> >> that lcnc modbus component you are requesting, test it, get it 
> to function as expected and lastly create a PR.. 
> >>> >> >> Someone eventually will forward the pr request into the repo ... 
> :-) 
> >>> >> >> 
> >>> >> >> Best wishes 
> >>> >> >> Michael Brown 
> >>> >> >> 
> >>> >> >> On Friday, December 27, 2019 at 4:46:09 PM UTC+1, justin White 
> wrote: 
> >>> >> >> 
> >>> >> >>> Bump...not alotta interest in modbus in my eh? 
> >>> >> >>> 
> >>> >> > 
> >>> >> > 
> >>> >> > 
> >>> >> > -- 
> >>> >> >  website: > >> >> http://www.machinekit.io>> >> >  blog: > >> >> 
> http://blog.machinekit.io>> >> >  github: > >> >> 
> https://github.com/machinekit>> >>> >   
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> >>> >> > 
> >>> >>   
> >>> >> 
> >>> > 
> >>> > 
> >>> > 
> >>> > -- 
> >>> >  website: > >> http://www.machinekit.io>> >  blog: > >> 
> http://blog.machinekit.io>> >  github: > >> https://github.com/machinekit>> 
>
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> >>> > 
> >>>   
> >>> 
> >> 
> >> 
> >> 
> >> -- 
> >>  website: > http://www.machinekit.io>  blog: > 
> http://blog.machinekit.io>  github: > https://github.com/machinekit 
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> . 
> >> 
> > 
> > -- 
> > website: http://www.machinekit.io blog: http://blog.machinekit.io 
> github: https://github.com/machinekit 
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