Kenny, I tried Mach3 R3.042.029 on a PC and on a laptop - no LPT driver installed, just Galil plugin, WINXP Pro.
After enabling Modbus (when it's not enabled a friendly alert pops out) and restart, the "Setup TCP Modbus" dialog doesn't pops out, only the "Setup Serial Modbus". I can't find what could be the reason. Demo restriction or should I set up both controllers for Modbus anyhow or burn some I/O logic first?

Velly,
I'm going to check whether it's a demo restriction. I will get back to you as soon as I can find out .
Kenny

I think it's Windows registry problem, the "Setup TCP Modbus" > Test works OK, but Mach3 can't read the Modbus TCP registers data through brains.
Has anybody managed to run RIO through TCP Modbus? Which (older or future) version of Mach3 supports TCP Modbus?

I am curious if the trajectory planning is done completely in the mach3 interface, or is that left to the Galil card? I have read some posts which indicate that 4 axis motion is not handled in cv in mach3 and I 'm wondering if I am going to be able to run my machine with good throughput with out the cv operational in 4 axis mode. I am currently running a smooth stepper and mach 3 I haven't gotten every thing fully operational, but know from experience that I will need smooth 3 and 4 axis interpolation to have this machine be fully useful. 

My system works fine threw mach. Motor and amp tuneing is done via Galil SW or other tuneing SW.

montabelli,
Trajectory planning is done by Mach3. The Galil handles the movements in 16ms slices, using the Mach axis profile data as its source. Works very well for me here.
Kenny

anyone have a block diagram on the hook up of Mach 3 the motion control board, servo amps, encoder feedback for a complete system that works

jim

depends what model galil controller and breakout board you have? what motor dives/ motor etc combination too
different wiring but all seem to work the same once set up.
are you setting up an old machine?

Question on Servo Amps and Motion Control Boards

Are the AC servo drives PWM by the servo analogue input +-10V DC.

They say the Motion Control Board puts out a standard +-10V.  Is it a pulse train or a continuous signal?
That is the servo drive take input of +- 10V and outputs what?  PWM to the motor?  vs a continuous output?

I have a motion control card MPU 11 from Ajax out puting +- 10V
I can get a copley servo amp for example, and drive a AC servo motor or DC servo motor.
Just want to understand what the +- 10V drives in terms of servo amp output.

Want to make sure the Motion Control Board, Servo Amp and Motors are compatible.

jim

+10 v would command full fwd speed 0 v would be stop -10 full speed reverse etc
so +5v would command half full speed forwards.
the galil uses  the drive or motors encoder output to define the position / travelling speed of motor and adjusts its output accordingly

the 10 volt analogue signal is the output of the motion controller -- but the input of the servo drive or vfd etc.
it is a very accurate output. (even the older galil are 12bit resolution i believe)