Messages

1

General Mach Discussion / Re: Serial/Modbus-servo comunication.

« on: October 07, 2007, 06:25:52 PM »

Whacko,

First thank for the help.
There is no argument here, that the Modbus is slow for the positional loop. But like I said, the poz loop is the servo driver's job.

So is Mach3 capable to sent values(not step and direction signals) to a servo?.
If yes how is this achieved?. At this time I have only the free verison
I can't find to much info in the manual, or on the forum. There is any other place were should I look?

Thank you,

Dan

2

General Mach Discussion / Re: Serial/Modbus-servo comunication.

« on: October 07, 2007, 02:27:25 PM »

Hi,

The loop is closed by the servos so communication speed is not an issue.
Modbus or serial (ASCII)  is used just to send target positions(not steps) to the servo and to get the actual position from the servo.
Once the servo has the values Mach just needs to monitor the status and the position.

Right now Mach spends most of the time sending out the steps. This is perfect for steppers but is a limitation for servos.

So again what is the Modbus or serial used in Mach3 for?

Thank you,

Dan

3

General Mach Discussion / Serial/Modbus-servo comunication.

« on: October 05, 2007, 11:03:42 AM »

First Hi to all.

I just download M3 and between other things I see  the serial and Modbus.

There is any way that M3 can send the data to the servos, thru serial instead step and direction?
Or can M3 poll the servos for info - to create a complete close loop system?

Dan