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Hi All, Another year comes to a close too quickly. Homann Designs would like to take this opportunity to wish all a safe and merry festive season. We would also like to thank all for their support

Hi Andy, I think I can accommodate all your suggestions. see the previous reply. Cheers, Peter

Hi Chris, Thanks for your input. The Arduino and Shield format is possible. The fact that there are so many shields and prototype boards around for the ardunio would mean that there are a lot of

Here here! I'd like to third what Andy said. Because while it was kind of like what I said and even closer to what I meant, he made sense. Chris modio@...> wrote:

...and of course, if the new stuf could have a switchable RS-485/422/232 port to talk to legacy stufff, it would be great! ...Hmm, what if the board DID accept accept Arduino shields...?

Yes, I'm good-looking forward to spring, which is almost here..... It would be really cool if the modules could be stacked like an Arduino shield-you could add as many or as few as you needed. The

Do me a favor if you're going to do anything that looks like an Arduino shield could you make the pins standard so I can make my own shields to go on them? I stopped looking at this stuff a while

Hi Andy, All is good down under. :) I trust you are well. Yes, I can accommodate an isolated 0-10V control voltage. I was thinking of a VFD interface module. This would the voltage output include,

Hi Peter: How've you been lately? A couple of ideas I thought of: -could you include circuitry to make it easy to send an isolated 0-10V signal to a VFD or other controller? -It might

Hi All, It's been quite a while since this group has been active, a year or so if I'm correct. Anyhow, I'm in the process of starting back onto the ModIP development. The ModIP is an Ethernet

You could try putting a 100uF cap between the pins. Also you might try adding a.1000uF cap on the 5v line to to smooth out the adc ref. Jacob wrote:

I don't use my ModIO analog inputs for any application yet, but I am curious about reducing the ~10% variation I get using a potentiometer between the +5(pin1) and Ground(pin4) for each input. Is

I haven't looked into these yet, but here is a link to the get/set timers in the Common section: http://libmodbus.org/site_media/html/libmodbus.html I assume the timer is set to 3.5 bits which hase

This version works as I think it should. The port close, open, sleep(1), and dummy read are all needed. ~~~~~~~~~~~~~~~~ /* * Copyright ? 2008-2010 Stéphane

Hi Kirk, Looking at the program, I can't see where you specify, the timeout period for when the master decides that the slave hasn't responded. I haven't used libmodbus, but there should be a way

Just in case, here is the program below. I'm not that good with C so don't be surprised if it is poorly written. ~~~~~~~~~~~~~~ /* * Copyright ? 2008-2010 Stéphane

Sorry about that. I often forget to do this manually, so I thought I would put it into the program that makes the configuration change. Yes, I suspect the the reply packet from the reset query

Hi Kirk, I'm struggling to understand what you are saying. :) Are you saying that you are making changes to the configuration in the ModIO? If so, yes you need to reset the ModIO for the

I've been playing with libmodbus 3 on a Ubuntu PC and a ModIO. It works fine, but if I make a configuration change, I need to reset the ModIO in order for the change to take effect. The problem is

Thanks. I'll have to give it a try, but with half duplex. -- Kirk Wallace http://www.wallacecompany.com/machine_shop/ http://www.wallacecompany.com/E45/index.html California, USA