Messages

31

General Mach Discussion / Re: Analog input using modbus device

« on: June 21, 2006, 03:31:31 AM »

Hello Brian,
Yes this helps, thank you.
Altough i'm not completely shure of what to do when more analog values are needed.
Say it was an 8-bit register, do i need to reed input 72 (=64+8) for the next value,
are does this mapping settings in modbus setup make it so that i need to read input 65
that is what i think actually.

Kris.

32

General Mach Discussion / Analog input using modbus device

« on: June 20, 2006, 04:11:08 PM »

Hello,

I noticed some people did use analog inputs with a (modbus) plc (brian? )
I am planning to use a modbus (coupler or plc). How does this work exactly.
I did check out the wiki pages on modbus, but it's not all clear to me.
If my analog modules are 8 bits, do i lose 8 oemtrigger inputs  or so?
are is it better to use direct access in scripting.
What i want to do is use an hall efect 3 axis joystick for jogging.
any hints?

Thanks,
Kris

33

General Mach Discussion / non-cartesian coördinates

« on: June 19, 2006, 09:26:36 AM »

Hello again,
i have another question for the development team.
i hope not to make you guys nervous, but are there any plans to make it possible for non cartesian systems to be programmed.
ofcourse i could just make 360.00 equal to 1 rotation, but i'm talking about speed control when using a robotic arm or so?
if so, would any help in that direction be needed?
i do understand the complexity of such calculations (not that i have the solution in front of me ), but i might get some help from some other people.
i have no idea what processing time is available to deliver the needed data to the mach driver, and because of that how powerfull the pc and the calculating algorithms should be. Is 'Bresenham' applied in mach?
greetz Kris.

34

General Mach Discussion / Re: Modbus

« on: June 19, 2006, 09:10:14 AM »

ok, thank

have another quaestion,
other topic so i'll post a new.
greetz

35

General Mach Discussion / Re: Modbus

« on: June 19, 2006, 07:27:30 AM »

Hello,
Great! thanks.
I will be using WAGO-modules (german manufacturer). They have quite a nice range of fieldbus controllers where inputs, outputs, counters, pwm's etcetera can be  added modularly. and fair priced.
The fact that modbus/tcp will be supported is very interessting because i will then be able to only replace the serial controller with the tcp version (some reprogramming etc. offcourse). The serial modbus device i have now i will be using for another machine where serial modbus is the only solution. So that last machine will have t wait a bit for its expansion 

Is there any time frame you can tell me (not gonna nail you down on it) when this would be implemented? 6 months? a year ? more 
thanks in advance and keep up the very good work you are doing.

36

General Mach Discussion / Modbus

« on: June 19, 2006, 04:51:32 AM »

Hello,
To the development team: is there a possibility that in the future, Modbus/TCP will be implemented in MACH ?
Or is this not possible since a lot of functions in XP need to be shut down?
Greetz,
Kris.

37

General Mach Discussion / Re: serial connection

« on: April 10, 2006, 02:26:54 AM »

hey Art,

Works like a charm!
I can send en receive, make Mach do what i want!
It's great.
Now i'll start on the OEMtrigger to start my macro and do some testing on that.

Thanks for the help!

Greetz, Kris.

38

General Mach Discussion / Re: serial connection

« on: April 07, 2006, 02:15:31 PM »

Hello,

Seems i found it on the yahoo-forum.
according to the thread (nr 52972) i need to use sendFiFO(mystringtosend).
i'll test it on monday (away for the weekend).
Don't know however, what the difference is in using GetFifoEntry() and GetFiFo().
Using the former.

Greetz.

39

General Mach Discussion / Re: serial connection

« on: April 07, 2006, 01:44:10 PM »

Hello,
Thank you for the quick reply!
Did some testing in the mean time, first results are promissing!!! (how is 'promissing' spelled?? Me from Belgium)
also had some CRLF problems like some other people on the forum encountered.
that's solved, but the command 'SendSerial' doesn't seem to work.
if i call the routine, the system hangs.
I probably need to use some command with 'fifo' in it that i don't know about.

Hope someone can help here ...
... will keep searching the forums ...

Thanks, Kris.

40

General Mach Discussion / serial connection

« on: April 06, 2006, 05:32:51 PM »

Hello, i have the following question
is there a way to control mach2 or 3 from a serial line.
What i need is that, if another computer that sends something like X200 Y200 over a serial line
mach has to move it's axes to that position and then send a reply-string  "IP" and asci 13,10
The second part is possible with the sendserial command, but continiously scanning the serial port or waiting for an event wich
announces serial data, is something else
I could use the 'getportbyte'  functions, but i'm hoping if there is a simpler way (less critical)
I can also set a port an use an oemtrigger to put mach in this 'scanning or waiting' state.
Has anyone had experience with something like this?
Thanks in advance.