[PSUBS-MAILIST] PLC HMI selection

[Steve McQueen via Personal_Submersibles]

Alan, no preference. I believe these companies offer similar quality products and support (to Cliff's point). You might call both of the tech support lines are part of your process and verify you see the same level of support.  

I have only used ezautomation HMI hardware/software.  I normally work with Rockwell-Allen Bradley.

Just make sure the memory/future expansion potential is sufficient. I find you can write ladder logic that works but if you are new to it you might use more instructions (memory) to achieve the same thing an experienced person would do with less (program efficiency).


Thanks,
Steve

---- Alan via Personal_Submersibles <personal_submersibles at psubs.org> wrote: 
> Thanks Steve,
> this EZrack 7 slot module is looking pretty good.
> http://www.ezautomation.net/ezrackplc/ezrackplc.htm#
> They are just about giving it away.
> The other option I am looking at is Cliff's 9 slot DL205 from automation
> direct.
> https://www.automationdirect.com/adc/Overview/Catalog/Programmable_Controllers/DirectLogic_Series_PLCs_(Micro_to_Small,_Brick_-a-_Modular)/DirectLogic_205_(Micro_Modular_PLC)#btn-bar-c
> Any preference?
> Alan
> Sent from my iPad
> 
> > On 3/01/2018, at 11:07 AM, Steve McQueen via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> > 
> > Alan, I would also check with ezautomation. The big boys (Rockwell-Allen Bradley/GE/Siemens etc.) are expensive on the software side as well as the hardware. Places like ezautomation provide a lot of the software for free. However it isn’t as full featured as the bigger brands but it will work.
> >  
> > Based on your programming class you should find programing  these other brands easy (I find ladder logic is basically the same across vendors).
> >  
> > I would say the cheaper brands (hardware) may not be as “industrial/reliable” as the more expensive hardware.
> >  
> > Cliff has some real world PLC/sub data. Carsten has some nice HMIs as well.
> >  
> > Steve
> >  
> > From: Personal_Submersibles [mailto:personal_submersibles-bounces at psubs.org] On Behalf Of Alan via Personal_Submersibles
> > Sent: Tuesday, January 2, 2018 3:33 PM
> > To: personal_submersibles at psubs.org
> > Subject: [PSUBS-MAILIST] PLC HMI selection
> >  
> > Hi,
> > am looking at purchasing a PLC & HMI.
> > Don't know a lot about what I am doing other than I have completed a basic
> > PLC programming course in RSLogix 500.
> > I will be having at least 31 analog & 4 digital inputs and 7 digital & 1 analog
> > output plus HMI connection. So most of the input is just for display on the
> > HMI & for alarms.
> > I want the PLC to be as small as possible & have been looking at the Automation
> > Direct Productivity 1000 stackable Micro PLC
> > https://www.automationdirect.com/adc/Overview/Catalog/Programmable_Controllers/Productivity_Series_Controllers/Productivity1000_(Stackable_Micro_PLC)
> > This item has just enough analog inputs.
> > Also I am looking at a 7-8" HMI screen. Automation Direct have this item I have been
> > looking at...
> > https://www.automationdirect.com/adc/Shopping/Catalog/HMI_(Human_Machine_Interface)/C-more_Touch_Panels/C-more_Touch_Panels_EA9_Series/C-more_EA9_Series_Touch_Panels/EA9-T8CL
> > Is a bit expensive at $999-
> > I envisage I will be designing the graphics; have done a lot with photoshop in
> > the past & a tiny bit of annimation, so any program that has similarities to the
> > photoshop format would probably be helpful, however not too concerned about that.
> > Has anybody got any suggestions about suitable PLCs & HMIs or any comments 
> > about what I'm looking at. 
> > The PLC has a 125V DC input, I couldn't see an IP rating for it. The HMI is IP 25.
> > Cliff, what size screen do you have & are you feeling it is the correct size?
> > Thanks,
> > Alan
> >  
> >  
> > 
> > Sent from my iPad
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