For the past couple of months I've been proceeding to convert a Bridgeport (Moog Hydrapoint, actually) to EMC. (August 2000, I think) RTLinux 2.3 /Servo-To-Go II, with Emerson FX/DX490 servo drive and motor pairs.
I'd like to make use of the Mitutoyo ADS2 absolute scales on the mill to read positioning data into EMC. The scales use a capacitive read-head unit, which communicates with the DRO serially. My thought is to poll the read-head using its serial protocol, and read that data into EMC's positioning feedback loop.
From talking to a tech person at Mitutoyo, the serial data wouldn't be blazingly fast, but the DRO unit is supposed to keep accuracy up to one meter per second. Another little quirk - he faxed me some schematics, pinouts, and protocol info, but the clock rate for the data spacing was on a page not faxed. (It was a long time getting this much info...)
Does the PC seria!
l port have enough speed for this, and how would it need to be meshed into EMC?
(I probably should ask - What's 'e-mail speak' for "I think I'm in way over my head"?)
Thanks,
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