On 9/5/20 10:40 AM, N wrote:
Or that they were cheap and were installed on a tablet that seems to be
ubiquitous these days. Unfortunately, the interface, both input and
output systems in the tablets leave a lot to be desired in the context
of a machine shop, at least from what I've seen of tablets. I just
don't want to depend on wireless communications to control a machine
that can hurt me or someone else or cause other kinds of damage.
Need to send message periodically to keep machine moving and no risk picking up
noise or signal from somewhere else. Probably need some kind of encryption and
randomness to solve this. On top of this are the ordinary risk what happen then
something fails, used long enough and it will sooner or later, at least me
quite often use things until they break.
All that doesn't matter if the interference in a typical machine shop is
constantly blocking, interfering or overwhelming the signal. There's
always EMI in a shop from a lot of sources. Why take the chance, and
not use a hardwired connection?
Mark
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