pulse output circuit in energy meter

[Kick]

Hiii friends,

What is the use of pulse output circuit in PIC18F87J72 energy meter?(output from uC connected to a connector through a opto-coupler)

https://ww1.microchip.com/downloads/en/DeviceDoc/51931a.pdf ..please refer the link,schematic in 38th page.

 

[KlausST]

Hi,

it is called "S0" interface.

Here you can connect other external metering devices.
The simplest is a mechanical pulse counter. It shows the ammount of energy.

Klaus

 

[Kick]

thanks Klaus. I have some more doubts.

1. So if I ignore this circuit,will it affect other circuit?
2. Should I add any circuit for finding active and reactive power? or is it internal calculation by microcontroller?

 

[KlausST]

Hi,

If you don't need the pulses, leave it unconne ted.

There is a metering chip inside, it calculates reactive power.

Klaus

 

[Kick]

wowww,that's so nice. Thanks for your reply.