To read active energy pulses for accuracy measurements, there are several options available on the
board. The related pulse rate is 6400 pulses per kWh by default, but is configurable using the energy
library.
• Optical output via LED1.
• Non-isolated electrical pulse via ACT header. The left pin is the signal, and the right pin is GND.
• Isolated pulses through JP7. The opto-isolator that is used closes the circuit between these two pins
on an active pulse.
Figure 13 shows the various connections that need to be made to the test set up for proper functionality of
the EVM.
Figure 13.