AccuEnergy manufacturers a line of high voltage power consumption meters.  Commonly used in solar energy monitoring.  The meter provides bi-directional control and status via ModBus RS-485 connection.

Requirements

• myServer 6
• RS485 adapter
• AccuEnergy AccuRev 1302-XO meter
• AccuEnergy device driver

Install the AccuEnergy driver from within myServer6's Software updater.

Plug in the USB RS485 adapter into the Raspberry Pi controller (running myServer6)

Wire the "A" terminal on the meter's RS485 screw terminal to the "A+" terminal on the USB RS485 adapter. (second from right looking from the screws with the wire exiting the bottom)

Wire the "B" terminal on the meter's RS485 screw terminal to the "B-" terminal on the USB RS485 adapter. (middle)

Configuration

Within the AccuEnergy driver, click AddDevice.  Controller Name should be a unique name for the device you assign.  the Meter Type is AcuRev1300. The Serial Port setting should be  "/dev/ttyUSB0"  The baud rate is 19200,8,n,1.  The Meter Address should be "1" (a unique value).

If all is plugged in and configured, immediately the meter should start populating variables in the "energy_" group.

The meter also contains a relay.  This can be actuated by selecting "Energy|1~Relay~On"