Hi, I bought a T3-TB controller and I want to add 4 Single Phase Power Meter with CT to monitor the energy consumption of my energy provider and the output of a backup power plant (monitor 2 phase from each).
I’m struggling with configuring the power meters to connect to the T3-TB (I’m new to Modbus and controlling in general).
One of my doubts is with the wiring of the Power Meter
I’m connecting a 12V power supply (Rigtmost pins) and the 2 wires for the Modbus protocol (center pins), not connecting the 2 “Voltage Input” since I believe those are for voltage measuring and I’m still testing so I didn’ wire them yet.
Moving on to the T3-TB, I can’t set up the RS485 Main configuration (see picture).
I would connect to the single phase power meter over RS485 directly to your PC to get started. That way you can set up the RS485 communications protocol and baud rate. I dont know off hand what the default setting of the power meter is but T3000 will be able to scan and discover it. Once you know the power meter communications settings you can then configure the T3 controller RS485 subnet to match those settings.
Following your advice, I connected 1 Power Meter to my laptop using a USB to RS485 adapter, and another power meter directly to the T3-TB (in the MAIN RS485 port), using the T3000 software to scan, I see the device connected to my laptop but not the one to the TB.
As always, its a good idea to update both T3000 and the device. Do the T3000.exe update first, then update the device firmware. Dialogs for both updates can be found under T3000 → help → check for updates.
