Re: What to use? EtherCAT or Ethernet Powerlink with CANopen protocol

Albert Saenz wrote:
> Hi all,
> I want to thanks everybodybut, I'm sorry, I think my question was not
> clearly introduce.
> 1.    Despite any PLC can NOT be deterministic because it depends on the
> "branch" it executes the program (Soft Real Time).

It dependes on the type of the "PLC" ... a can be SoftPLC be 
deterministic if it
works eventoriented on top of an RTOS.

For instance: http://dachs.net/DACHSview++_E_fleyer.pdf
[ clip]

>Anyhow, our query was to demand your opinions when we need to control more
>axis and all the I/Os (digital and analog) with a single field bus channel?
>That is because we are thinking in EtherCat or Powerlink (despite that I
>sincerely believe that Ethernet hardware will win to any other solution in
>the CNC market).

You should also have a look to the VARAN bus: http://www.varan-bus.net/index_en.htm

Best Regards
--Armin

> Hope I have clarify properly
>Best,
>Albert Saenz
>Skype: my_voip