Just to be sure, are you slaving the RIO to the 2143? I don't, but instead have the RIO connected using the ethernet Modbus setup. If you are slaving directly to the 2143, you may be overtaxing the 2143's communications with Mach. I need to know more before commenting further.
Thanks,
Kenny

Yes, I'm slaving the RIO to the 2143. The thing is that I use only Galil Tools for now, downloading and executing simple .dmc files. No Mach3, just Camsoft, which can't handle both controllers. Hope to get things working on a lower level, before investing in any other software.
Thank you!

You really need to switch. Mach handles both controllers well and has the features that you need to work with them. You shouldn't have any communication problems either. Mach and Galil just keep getting better!!
Kenny

Also, you can try Mach for free.  The demo will run a limited line number G code file.

Thank you Kenny and smurph, I will definitely try it these days and give some feedback. Have a great one!

  Can someone tell me what an operand error is and why I get one using a DMC-1832 with Mach? Even when I just jog the error shows up in the status box. Also, with a DMC-1425 the encoder count goes up and down slightly when I push on the machine (as it should) but with the DMC-1832 it doesn't. I am wondering if a firmware upgrade on the 1832 is in order.

Make sure the debug checkbox is checked in the plugin config.  Then fire up Mach, do the jog, and then exit Mach.  Then send the GalilDebug.txt file.  (should be in the Mach or Plugins directory.)  My email address is iin the GalilPlugin.pdf file.

Steve

  Sorry, smurph. I already did the firmware upgrade and both of those issues went away. I can't get over how impressive big, brushed DC motors are when you give them all the volts they want and hold them in tight control! The section in the plugin pdf instructions about 'move settings' had me hung for a while or I would have gotten back sooner. The machine had a stutter problem that I was trying to work out with the Queue Buffer setting. I noticed it didn't have much effect on the stutter until I turned Linear Interpolation on. The picture showed it off. Then I read it was to be off only on Acceleras. I need to read before I do. Thanks for the response!

Dear Kenny and Steve,
As you suggested, I've downloaded Mach3 to test if I can run Galil DMC2143 + RIO41700 simultaneously, connected through a hub.
PC is 192.168.1.2, RIO 192.168.1.4 (with zeroed MV and enabled MI), DMC is 192.168.1.5

Mach3 finds "more than one control devices" and connects successfully with the DMC, jogging and contouring quite good!
The problem is that there is no way to Setup the TCP Modbus (dialog box doesn't pops up) and there is no connection with the RIO.

Please let me know what could be the reason. So far there is a light in the tunnel, that this configuration could run smoothly.
Thank you in advance!

Velly,
Did you follow my instructions in the RIO PDF exactly? You need to enable the Modbus checks under ports & pins first, then do a restart of Mach, and then the Ethernet Modbus screen should become available. Continue to follow all the prompts in the PDF and the controller should work fine. Please let me know if you run into further trouble.
Kenny