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CANOpen Monitoring and Power Board


I created the CO-RJ45-PWR so that I can easily monitor my RJ45 CANOpen network and, if needed, provide power to CAN_V+.

My Trac site has the details, and this post has the background information.

Since all of my other adapters provide CAN_V+ connections, I doubt I’ll use that capability often.  I’ve already used the board several times to investigate CAN buses.

I used this board to try out Phoenix Contact’s PST/PT series of removable terminal blocks.  The main reason I used them is the pin-strip header makes a great connecting post for grabber-type oscilloscope probes – but if you want to use discrete wires, just plug in the screw terminal socket.

The PT terminal block sockets are  very affordable, and some models, including the one I choose, can be mounted in three different positions.

On the down side, the polarized pin-strip isn’t readily available (so be careful when plugging the socket into the header) and the socket is only available with screw terminals (I prefer spring clamp).


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