Option FP for the WattNode® Modbus® supports utility feed-in limit requirements. Some utilities have limits on the power that may be fed into the grid by inverters. To avoid exceeding this limit, a meter must monitor the power flowing to and from the grid. The inverter must then monitor the output of the meter and adjust the generated power accordingly.
Normally, the WattNode Modbus has a one second power update rate, which can result in delays up to slightly over two seconds on feed-in limiting. With Option FP, the update rate for floating-point power measurement speeds up to 200 milliseconds (five updates per second), allowing for feed-in response times of 500 milliseconds.
Option FP is available for both revenue and standard versions of the WattNode Modbus.