And surprisingly, there is a much interest in using it for home projects as there is for using it to automate small machines.
There's no doubt about it, the “Micro820” PLC is, well small: It has just 20 points of I/O built-in (12 DI, 7 DO, 1AO.)
And for $249 you also don't get the removable terminal blocks shown in the picture, or a USB port.
But with Ethernet built-in, USB is really not needed (but would be convenient to have.)
What you do get, besides Ethernet, is a serial communications terminal block supporting RS-232 or 485.
You also get a Micro SD card slot to store datalogs, recipes, or to use for program transfer.
You also get the ability to use four of the 24vdc digital inputs as 0-10vdc analog inputs, or 10K thermistor inputs.
And you get one dedicated 0-10vdc analog output, as well the ability to add two Micro800 plug in modules.
The unit programs like other Micro800's using Rockwell's free “CCW” software, which can be found HERE.
For more details about the Micro820, check out Rockwell's product profile PDF which is available HERE.
I'd love to hear what personal project you might tackle if you had one at home?
If you have an idea for a “home automation” or “hobby project” you'd tackle with one of these units, please share it with us by clicking on the “post a comment or question” link below.
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