I’ve been researching which product to buy for lab development work and have settled on the
- ZADR220PROXR Industrial High-Power Relay Controller 2-Channel + 8-Channel ADC
- wired Ethernet module
Ultimately I want to run software on a linux host that will send commands to control the relays and possibly accept ADC inputs from the board.
- I wanted to get 20 Amp relays in order to be prepared for whatever switching needs my customer throws at me when I arrive on site, but then I read this warning:
“Ideal for high-power switching applications, this relay should never be used for low-power signals.”
Why is this?
I really like the direct push-on connectors on those 20 Amp relays because it eliminates the circuit traces from the switched path; the current flows directly to the relay contacts.
- I understand that NCD is not a software house, so how can I get up and running quickly to communicate with this board from a linux computer?
I use Windows 10 regularly for everything, but our production systems run linux.
I know about Base Station to learn the communications and operations of the relay board.
I was hoping to use Node-Red to jumpstart, but it looks like that only supports the wireless sensor line and I read a post from last August that there is no Ethernet library for Python.
I was all set to order a board the other day, but I keep finding more products and more relevant information so my head is spinning with all the choices available. It’s a staggering amount of choices to sift through for a beginner.