Messages

21

Modbus / Re: Problems with Modbus TCP

« on: April 19, 2014, 10:41:29 PM »

Thank you.  I have gotten further. I was able to test commands through the modbus test.  That was exciting.  I did see your attachment though.

22

Modbus / Re: Problems with Modbus TCP

« on: April 16, 2014, 07:57:34 AM »

Well I have just started back at this project.  I am running a Emerson Sk Commander drive with a sm-ethernet module.  This module allows me to communicate over Modbus /tcp or ip.  I did talk to a programming buddy at work with me and said he can help get the control words and parameters setup.  But he can't help with the mach3 brains or macros.  I think I have a mental block when it comes to the brains or macros.  Do you have a layout of the brains that I can look at and decipher.  rive is different but may help me in the right direction.  My programming friend one problem I had was that I never dropped the indicators into the Sm module so that the drive new what the master was sending.

My ultimate goal is to start, stop spindle and control speed.  Hoping later to control vacuum table  dust collector, and various other things.  But first thing is first communication.  I appreciate any help you have.  I did attach sm -module manual of my drive if you want to look at it.

23

Modbus / Re: Problems with Modbus TCP

« on: April 15, 2014, 01:12:11 PM »

No worries TeaMan, your not robbing thread.  So were you able to get anywhere with your Drive?  I forgot about the thread and now that my table is back up and running I am now talking the drive setup again.  If you have any insight that might help me, it would be greatly appreciated.

24

General Mach Discussion / Re: Laser Crosshair

« on: October 06, 2013, 07:50:01 PM »

Thanks all worked out good.

Brooks

25

General Mach Discussion / Re: Laser Crosshair

« on: October 05, 2013, 09:49:19 AM »

I saw you were adding some buttons for the laser cross-hair.  Can you you add the laser zero button and dro like the others but also a Laser Cross-hair button to turn on and off laser to an output.  I have been trying to do so but can not seem to get it functioning.  I have successfully added the auto tool height script though.  Thanks

Brooks

26

Brains Development / Re: Out-put control word to sequential range of coils (Danfoss VFD)

« on: August 29, 2013, 09:20:10 PM »

Majorstrain,

How did your VFD turn out.  It seems to me that you might the same type of communications as my Emerson SK commander Drive.  Send full control words and status words.  My is with modbus tcp or modbus rtu.  Anxious to hear how you turnout.  Maybe some setup screens, VB, and Brains.  Thanks.

Brooks Nelson

27

Modbus / Re: Problems with Modbus TCP

« on: August 26, 2013, 08:30:21 AM »

I found something in the Advanced manual of the CT drive.  Pg. 16-23.

CT Parameter           MODBUS PLC Register          Register Address (Protocol Level)
X.Y                              40000+X*100+Y                 X*100+Y-1
Examples
Pr 1.02                        40102                                 101
Pr 1.00                        40100                                 99
pr 0.01                        40001                                 0
______________________________________________________________________________
Does this mean that I would put parameter 40642 or 641 which is my control word (Read/Write) as my starting address in the test dialog box?

Then I would be sending the control word there.  I would assume that since the bit to word is broken I would need to convert to Hex or decimal for the Brains?

Then in the brains I would need?
SPINDLE ON->No operation->Formula ( the control word converted to hex or decimal)->then terminated as MOD:O?

Im trying, wow this is something for me.  I think I getting closer but still seems as if the light bulb in my brain is not hooked up. LOL!

Thanks Brooks

28

Modbus / Problems with Modbus TCP

« on: August 25, 2013, 08:28:31 AM »

I have been diligently trying to get my modbus tcp to talk between mach3 to my Emerson Sk commander drive.  I called and talked to a tech about this drive and he sent me a file and told me to use it, but he was not familiar with Mach3 but thought it most likely would work.  I set up the drives parameters and ip address and can communicate to the web url with the drive.  I can see al the parameters and know its working via IP.  I then went to Mach3 and tried setting up the Modbus tcp screen. I inputted te information the way I thought it needed to be.  I opened connection and it was successful.  When I go to test starting address I kinda get confused.

Heres the email the tech sent me.  A one liner

With Modbus TCP/IP one simply writes to Parameter #6.42 (as #40642) and #1.21 (as #40121) for control via an Ethernet link.

This is a paragraph out of application I found online using a sk commander.

These are the parameters that we will use for controlling the drive from the network.

The four parameters that we want to include in the configuration are:
Parameter Name
Data Direction         Register          Length               Modbus Command                     Communicator Internal Address
Control Word
Write                     40642             1 Word(s)          [16] Preset Multiple Registers     0x0200
Preset Speed #1
Write                     40121             1 Word(s)          [16] Preset Multiple Registers     0x0202
Status Word
Read                     41040             1 Word(s)          [03] Read Holding Registers        0x0000
Output Speed
Read                     40501             1 Word(s)          [03] Read Holding Registers        0x0002
Control Word Enable
Write                    40114             1 Word(s)          [16] Preset Multiple Registers      0x0204
Reference Selector
Write                    40643            1 Word(s)           [16] Preset Multiple Registers      0x0206

So i setup my TCP screen.  i attached that to.

I have watched the videos on brains, modbus etc.  But still need help  If anyone can shine light on this.  I would be greatly appreciated.

I am wanting to start and stop spindle, and adjust RPM's.

29

PoKeys / Re: Mach3 TCP/IP Modbus config setup

« on: March 01, 2013, 11:24:58 AM »

How did the modbus tcp/ip doing with mach 3.  I am just starting my journey on this configuration and am in the dark so any help would be great.  I was wanting to stop, start, vary speed, maybe monitor load amperage of spindle.  I am running a VFD drive that has the capability to us modbus tcp/ip over ethernet, or modbus rtu via rs485.  Any help would help would be great. 

Brooks Nelson

30

General Mach Discussion / Connecting Emerson Drive SK to Mach3 Program

« on: February 26, 2013, 08:29:27 AM »

Hello everyone. I have been building my cnc and I have successfully hooked up my spindle motor (SM2-C54) from Ekstrom-Carlson to a SKBD200110 Emerson Commander Sk VFD drive. The spindle and drive pretty well together although there were a few parameters to change to get it operational.

I am at the point I would like to hook up the drive to Mach3 control. I have found that the drive is Mod-bus compatible, and will also connect to computer via Ethernet also. I also have a rs-232 to rs-485 converter. Has anyone done this?

I would like to start and stop drive, also maybe monitor spindle load on screen and possibly control speed to. I do have digital inputs and outputs along with analogs for meters and such. So now is the question and to make this all handshake between each other.

Any help would be awesome.