hjbleier
Hey I was wondering if you plan to make a analog input card (0-10vdc, 4-20mA, maybe even thermistor like 10k2 or 10k3 type) and a analog output card for 0-10Vdc and/or 4-20mA. I want to build a set of your concept hardware it looks pretty cool. I have always used lonworks ft10 and BACnet mstp devices with set numbers of inputs and outputs. Ever since I worked with opto22 on one project this has always been something I wanted to try and make. I like the idea of having boards to mix and match to get the right amount of io for the project. I want to put together a project to control a small process but I need analog points. I saw that you moved on to the raspberry pi shield and stuff. Just wanted to see if you are still tinkering with the concept hardware because it looks awesome. I Am still gonna find a excuse to build it for one of my projects soon either way. I think it will be a amazing learning experience. Thank for putting this out there, it is amazing work you did on this.
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thiagoralves
hjbleier wrote:
Hey I was wondering if you plan to make a analog input card (0-10vdc, 4-20mA, maybe even thermistor like 10k2 or 10k3 type) and a analog output card for 0-10Vdc and/or 4-20mA.

On the early days of the project, Jos Terlouw created an analog input module for the concept hardware, but I ended up never publishing it (shame on me [sneaky]). He even got a video on youtube with the project working: https://www.youtube.com/watch?v=KWDz0rthhfM

However, since I moved the support to other platforms, I kinda forgot about the concept hardware. Currently, even if you build it, it won't be compatible with the actual version of the software. But I'm planning to create new boards this Fall based on the current concept hardware that will be compatible with the updated software. I'm looking for partners online to manufacture the boards because I would like to sell them. Unfortunately, all the platforms the OpenPLC runs on lack something, like electrical protections, measurement accuracy or speed. I want to build the platform that will be the perfect low cost solution for home and industrial automation. I just hope I will have time to do it. Meanwhile, you can stick to RaspberryPi + Arduino + some shields for your analog measurements. 

hjbleier wrote:
Thank for putting this out there, it is amazing work you did on this.

Thanks! The feedback from users is my biggest motivation factor
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tomdertech
Hi,

I am working on some modular hardware. I am hoping to launch it in September/October. It would be great to talk with you about your requirements and maybe some beta testing. Let me know.
Thanks.
Regards,
Tom
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thiagoralves
tomdertech wrote:
Hi, I am working on some modular hardware. I am hoping to launch it in September/October. It would be great to talk with you about your requirements and maybe some beta testing. Let me know. Thanks. Regards, Tom

I'll be happy to know more about your modular hardware and help. You already gave me some explanation over email but I still just know the big picture. Let me know what you need and how I can help.
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