CODESYS - the IEC 61131-3 automation software

Welcome to the official CODESYS Forum by 3S-Smart Software Solutions GmbH | A member of the CODESYS Group
Deutsche Version English version russian version 
It is currently Fri Jan 24, 2020 5:35 pm

All times are UTC+01:00




Post new topic  Reply to topic  [ 3 posts ] 
Author Message
 Post subject: PLC choice
PostPosted: Fri Aug 04, 2017 10:40 pm 
Offline

Joined: Sat Apr 29, 2017 6:20 pm
Posts: 3
Hi all.

I'm carrying out a home project for a greenhouse automation system and I'm after some advice.

I don't want to spend a fortune on a PLC and I haven't got the time to e-mail every supplier for their prices as it seems to be a industry secret between the different companies. (I am planning on running a test system on a rasp pi with the pi codesys plugin but this may become a product that goes to market and therefore the pi might just not cut it)

I'm only after about 10 analogue IO (this could even be I2C if needs be) 10 dig in and 10 dig out. Would be nice if this could also be expandable if I require it.

Anyone had any success with a cheaper PLC supported by codesys? something around £100 mark would be nice. I need web visu to be supported and also HMI if possible. So it needs at least Ethernet connectivity.

Thanks all in advance!!!!


Top
   
 Post subject: Re: PLC choice
PostPosted: Tue Aug 15, 2017 1:34 pm 
Offline
Frequent User
Frequent User

Joined: Fri Sep 02, 2011 8:02 pm
Posts: 312
I work in the industrial world and I think you will have trouble finding any solution with the "industrial" suppliers for that kind of price range. For an industrial PLC that programs with CoDeSys, you probably start at $250 lowest end (most of these in the USA will program is some form of ladder, not CoDeSys). I/O will add $50 to $150 per module, minimum. If you are looking to offer a solution for sale in the "real world", you will need proper I/O modules that have protection against noise, incorrect wiring, bad sensors, etc. - I don't think Rasp Pi add-on boards do that, but then I only know about the Rasp Pi's price.

_________________
Scott Cunningham
KEB America, Inc.
www.kebblog.com
www.kebamerica.com


Top
   
 Post subject: Re: PLC choice
PostPosted: Sat Jan 20, 2018 4:29 am 
Offline

Joined: Wed Sep 13, 2017 6:59 pm
Posts: 7
Have you found your answer yet?

Take a look into the raspberry pi using the codesys. With it you can use the i2c devices of your choice or buy an existing hat.

You can get the raspberry pi setup for around $40 and the hat for around $30 but you will need more IO. There is a hat that will do you some good, check out one made by sequential micro systems on Kickstarter, it's I2C and stackable.


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 3 posts ] 

All times are UTC+01:00


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Limited