Re: [Emc-users] Odd SSR behaviour?

On Wednesday 03 February 2016 21:38:27 Jon Elson wrote: > On 02/03/2016 02:09 PM, Gene Heskett wrote: > > Now I have spent 20 minutes doing a slow dance on those 2 > > buttons, and haven't tripped the breaker yet, probably > > more than 50 full cycles. > > Well, still don't exactly know why it was

Re: [Emc-users] Prempt RT on Linux Mint

> From: Peter Blodow [mailto:p.blo...@dreki.de] > Yeah, and these "skewy" bits were the reason why in the days of parallel > bus connections all operations had to be acknowledged on separate wires > so it was made sure the bits had arrived correctly. This made > connections slow, but terribly relia

Re: [Emc-users] Prempt RT on Linux Mint

Yeah, and these "skewy" bits were the reason why in the days of parallel bus connections all operations had to be acknowledged on separate wires so it was made sure the bits had arrived correctly. This made connections slow, but terribly reliable. The DEC computer series like the VAXes were an

Re: [Emc-users] Prempt RT on Linux Mint

... > Buses are changing from mostly parallel to serial. PCI is going that way > and USB3.x is very promising. It's direction most computer vendors are > taking. Simplifies cabling over longer distances if nothing else. I went to school (computer engineering) in the late 70's' and early 80's back

Re: [Emc-users] Prempt RT on Linux Mint

> RasPI and Beagle and all these other things have life cycles more in line > with smart phones - this year's new shiny is considered obsolete next year, > and the replacement is far less likely to be a "drop-in", so you wind up > needing new breakout boards or other interface hardware. I don't to

Re: [Emc-users] Odd SSR behaviour?

On 02/03/2016 02:09 PM, Gene Heskett wrote: > Now I have spent 20 minutes doing a slow dance on those 2 > buttons, and haven't tripped the breaker yet, probably > more than 50 full cycles. Well, still don't exactly know why it wasn't working before. Did these charge pumps DIRECTLY drive the SSR

Re: [Emc-users] Gee, Ihope my last message didn't break the server. :) Suddenly its very very quiet.

A couple of my emails have not showed up yet from today... JT On 2/3/2016 4:30 PM, Gene Heskett wrote: > Cheers, Gene Heskett -- Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM +

[Emc-users] Gee, Ihope my last message didn't break the server. :) Suddenly its very very quiet.

Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page -- Sit

Re: [Emc-users] Odd SSR behaviour?

On Wednesday 03 February 2016 13:52:16 Dave Cole wrote: > I've seen some really wierd issues with some SSRs. I think that some > are not setup internally as they depict. > > Because of that I tend to avoid them when I can. However in some > applications they are the only way to go. > You might

Re: [Emc-users] Prempt RT on Linux Mint

This post scratches slightly on a chutzpah On 2016-02-03 19:33, Rafael wrote: > On 02/03/2016 10:00 AM, Sarah Armstrong wrote: >> i'm sorry but the topic or question was ? , as posted by the OP >> > Threads evolve sometimes so relax. It's not the first time that things > go a bit out of hand.

Re: [Emc-users] Odd SSR behaviour?

I've seen some really wierd issues with some SSRs. I think that some are not setup internally as they depict. Because of that I tend to avoid them when I can. However in some applications they are the only way to go. You might want to consider using relays for this application instead. Dr

Re: [Emc-users] Prempt RT on Linux Mint

On 02/03/2016 10:00 AM, Sarah Armstrong wrote: > i'm sorry but the topic or question was ? , as posted by the OP > Threads evolve sometimes so relax. It's not the first time that things go a bit out of hand. Now that you sit so tight, how about trimming email first? Including two footnotes? Loo

Re: [Emc-users] HELP:kinematics Pyrros

On 3 February 2016 at 17:49, pyrros tsopanakis wrote: > I am really new user. > I would like to understand how can i program non trivial kinematics. > I have read integrator manual but i cant find solution. > I have forward and inverse transformation but i dont know how to create the c > code and

Re: [Emc-users] Prempt RT on Linux Mint

> -Original Message- > From: John Kasunich [mailto:jmkasun...@fastmail.fm] > Sent: February-03-16 9:00 AM > To: emc-users@lists.sourceforge.net > Subject: Re: [Emc-users] Prempt RT on Linux Mint > > Another problem with all these boards is that they have "flash in the pan" > life cycles.

Re: [Emc-users] Prempt RT on Linux Mint

i'm sorry but the topic or question was ? , as posted by the OP On 3 February 2016 at 17:48, Rafael wrote: > On 02/03/2016 09:00 AM, John Kasunich wrote: > > > > > > On Wed, Feb 3, 2016, at 11:49 AM, Rafael wrote: > > > >> > >> Problem with all those boards is in the fact that they have no commo

Re: [Emc-users] Prempt RT on Linux Mint

> > Problem with all those boards is in the fact that they have no common > > bus so that others could build standard interfaces on open architecture. > > All seem to be built to replace a PC with most of it's functionality. > > > > Want to make a common box, bad luck. Everybody comes with their

[Emc-users] HELP:kinematics Pyrros

I am really new user. I would like to understand how can i program non trivial kinematics. I have read integrator manual but i cant find solution. I have forward and inverse transformation but i dont know how to create the c code and then how to execute this program (c code) with linuxcnc. If you

Re: [Emc-users] Prempt RT on Linux Mint

On 02/03/2016 09:00 AM, John Kasunich wrote: > > > On Wed, Feb 3, 2016, at 11:49 AM, Rafael wrote: > >> >> Problem with all those boards is in the fact that they have no common >> bus so that others could build standard interfaces on open architecture. >> All seem to be built to replace a PC with m

[Emc-users] ze2pyr...@hotmail.com

ze2pyr...@hotmail.com -- Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web t

Re: [Emc-users] Prempt RT on Linux Mint

On Wed, Feb 3, 2016, at 11:49 AM, Rafael wrote: > > Problem with all those boards is in the fact that they have no common > bus so that others could build standard interfaces on open architecture. > All seem to be built to replace a PC with most of it's functionality. > > Want to make a comm

Re: [Emc-users] Prempt RT on Linux Mint

> >> Large CNC systems require more computing power of course, but that too >> should not be a problem for decent IO cards independent of motherboard >> latency. > > Well actually I expect more computing power will be needed in small machine > where fast dynamic responce is required. I also expect

Re: [Emc-users] Prempt RT on Linux Mint

On 02/03/2016 07:50 AM, Ralph Stirling wrote: > > This is exactly what the Machinekit fork of LinuxCNC is for. Check it > out at http://machinekit.io . It runs on BeagleBoneBlack's, RaspberryPi2's, I'll sure look into this. > and a variety of other ARM boards with and without FPGA's, as well as

Re: [Emc-users] Prempt RT on Linux Mint

> The problem is the EMC2 is an old program designed when hardware was > different. Today no one would design it as one big app that runs on a > a PC with an RT OS. > > Starting over from scratch I'd put the real-time functions on a low > cost commodity single board computer. ... The real time f

Re: [Emc-users] Prempt RT on Linux Mint

This is exactly what the Machinekit fork of LinuxCNC is for. Check it out at http://machinekit.io . It runs on BeagleBoneBlack's, RaspberryPi2's, and a variety of other ARM boards with and without FPGA's, as well as PC hardware. All bleeding edge under heavy development, so support is much sket

Re: [Emc-users] Prempt RT on Linux Mint

The problem is the EMC2 is an old program designed when hardware was different. Today no one would design it as one big app that runs on a a PC with an RT OS. Starting over from scratch I'd put the real-time functions on a low cost commodity single board computer. One of the best is Texas Instru

Re: [Emc-users] Odd SSR behaviour?

On Wednesday 03 February 2016 09:27:58 Gene Heskett wrote: > On Wednesday 03 February 2016 04:26:07 Erik Christiansen wrote: > > On 03.02.16 03:11, Gene Heskett wrote: > > > So the only way to do this relatively non-timing critical psu > > > switching is to use the carge pump, and a charge pump de

Re: [Emc-users] Odd SSR behaviour?

On Wednesday 03 February 2016 04:26:07 Erik Christiansen wrote: > On 03.02.16 03:11, Gene Heskett wrote: > > So the only way to do this relatively non-timing critical psu > > switching is to use the carge pump, and a charge pump detector to do > > that control, it can absorb the noises without tri

Re: [Emc-users] Odd SSR behaviour?

On 03.02.16 03:11, Gene Heskett wrote: > So the only way to do this relatively non-timing critical psu switching > is to use the carge pump, and a charge pump detector to do that control, > it can absorb the noises without triggering the outside world for 1/4 > second while its getting its shit

Re: [Emc-users] 7i43 encoder count failures

the error is in the recorded data that is, the data AFTER it was transferred the transferred data might be fine and the error message is based on the stored data the message might imply it is based on the data transferred but it aint, it is on a copy and that copy is in memory, not in a stream my

Re: [Emc-users] Odd SSR behaviour?

On Wednesday 03 February 2016 00:36:29 Jon Elson wrote: > On 02/02/2016 10:03 PM, Gene Heskett wrote: > > I believe they are. Would you like to see the .hal file? > > Hmm, not sure I could tell much from it. Is this using a > Pico Systems PWM controller, Yes > or a Mesa board? Yes, a 5i25. > (I'v

Re: [Emc-users] 7i43 encoder count failures

it is a single bit difference between 0x8000 and 0x can you check your memory? hth tomp On 02/03/2016 02:40 AM, Marius Alksnys wrote: > Today I catched the fault which was causing headache for quite a long > time already. > > There is a machine with one 7i43 P (200k) and one 7i39 and one BLDC