On 07/20/2017 05:28 AM, Les Newell wrote:
There already is a stanardized sockets based interface called NML.
Standardized for LinuxCNC but it is not a generic CNC interface. It is
also licensed GPL2 which is a problem if you want to use it with
closed source controllers such as Mach3, Eding CNC, UCCNC, PoKeys etc.
That sound bad. I have not read protocol used for 0MQ yet.
0mq has been around for a while but it simply didn't really fit my
application. The biggest problem for me was the fact that it hides
connection status. You have no reliable way to know if you have a
connection or not. I also had occasional disconnection issues. It is
quite possible I was doing something dumb to cause the connection
issues but switching to plain sockets proved to be simpler and more
reliable.
Les
IIRC ZMQ/0MQ is considerable faster than NML. I suppose it all depends
on how much bandwidth
one really needs and the reliability. I had hoped that MK would have
ZMQ sorted by now.
I like the idea of using a standard video interface and only needing to
change the motion part of
a system.
Dave
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