Messages

21

Modbus / Re: Can A Modbus control a.........

« on: August 02, 2008, 11:36:49 AM »

Well I think I have a plan.

I will use a Smooth Stepper to get two parallel ports and use one to control the brake out board I have now from
port 1 and add another brake out board to port 2 to handle the TC axis and I/O's to and from the PLC.

What do you guys think?

22

Modbus / Re: Can A Modbus control a.........

« on: July 30, 2008, 07:51:33 AM »

Hood:
Everybody likes a little ass but not a smart ass! 
How many words are you using?

I may need the software anyway to drive the stepper.

23

Modbus / Re: Can A Modbus control a.........

« on: July 30, 2008, 07:19:11 AM »

Who's PLC are you using?

24

Modbus / Re: Can A Modbus control a.........

« on: July 29, 2008, 08:29:45 PM »

Hood:
So let me see if I'm understanding this.

You are using a set of switch's in a particular order
to tell the PLC what tool is in postion.

Mach tells the PLC witch tool it needs and the PLC
moves to that tool.

phomann:
Thanks for the post!

25

Modbus / Re: Can A Modbus control a.........

« on: July 29, 2008, 05:38:45 PM »

Are you using a home switch?
Do you have a DRO in Mach?

26

Modbus / Re: Can A Modbus control a.........

« on: July 29, 2008, 03:56:37 PM »

I can see how that works.  It makes sense. 

If you are using a stepper, how do you zero tool #1?  If it were in a DRO in MACH, I could see how you could zero on your first tool and then every tool after that would be X amount of degrees. 

27

Modbus / Re: Can A Modbus control a.........

« on: July 29, 2008, 01:29:00 PM »

I would like for Mach to keep up with the TC indexing on it's own DRO.
That's why I ask if Mach could run another axis outside of the printer port.

If the PLC controlled the axis how would Mach know where it was?

28

Modbus / Re: Can A Modbus control a.........

« on: July 29, 2008, 09:22:05 AM »

What are PoKeys?

29

Modbus / Re: Can A Modbus control a.........

« on: July 29, 2008, 08:22:45 AM »

This it is how the changer will work.

The changer will have 3 axis.

1: The Z will go to a preset and mach
will send a signal to start the change.

2: The TC will slide on a rail and engage the tool.
It will leave a switch to let the PLC know that it is not there and when it engages the tool contact a switch
letting the PLC know where it is.

3: It will activate the draw bar, the bare will leave a switch and contact and switch to let the PLC know
where it is.

4: The TC will then drop down leaving a switch and
contacting and switch to let PLC know where it is and send Mach a signal to index the changer “x # of deg’s”Mach sends a signal back to the PLC to reverses the proseager and tells Mach when it has returned home. 

5: The PLC tells Mach the coast is clear and cycle start.     

30

Modbus / Re: Can A Modbus control a.........

« on: July 26, 2008, 11:08:29 PM »

I'm not made of money but I don't mind spending it if needed.

So what would be the simplest way to index the changer using a stepper.
Remember I have a running machine that has the current BB full.

I would like this to be an add-on.