EKM Metering

Hello!

I use omnimeter V4 to collect data from my 4-wire system (3 phase, 230v/50Hz) via RS-485. Everything works fine. Great meter!
I have a question regarding to a Cos Phi data decoding:

Sometimes I receive Cos Phi data as:

HEX:
43 30 37 33 // Cos PHI L1 0.73
20 31 30 30 // Cos PHI L2 1.00
43 30 37 38 // Cos PHI L3 0.78

sometimes as:

HEX:
43 30 39 39 // Cos PHI L1 0.99
20 31 30 30 // Cos PHI L2 1.00
43 30 37 30 // Cos PHI L3 0.70

CRC is ok.

What does the first byte in Cos PHI data means (20 or 43)? Does in this case 43 means “+” in decimal? Is there any other possible values?

Thank you!

meter07 wrote: What does the first byte in Cos PHI data means (20 or 43)?

Parsing Cos Phi data I have noticed also "4C" as first byte in Cos Phi data, as follows:

HEX:
4C 30 37 30 // Cos PHI L1 0.70
20 31 30 30 // Cos PHI L2 1.00
43 30 37 38 // Cos PHI L3 0.78

So, possible values are 4C,20,43

I got it

0x4C is for L and 0x43 is for C.

So, the correct readings for the my last case will be

4C 30 37 30 // Cos PHI L1 0.70L
20 31 30 30 // Cos PHI L2 1.00
43 30 37 38 // Cos PHI L3 0.78C