correct math for energy metering

[AlexLV]

Hi Admin,

unfortunatelly such way not working for me :

In attachment pictures with different datatypes I used with modbus LM reader... As I think my device - Gavazzi PM 340 gives out int32 format - as example 2341 (this is L1 phase voltage, real should be 234.1V). If I use float32 type I see something wrong...

But from documentation - I see smething not correct, in real received data should be divided by 10 not multiplied..

300001 0000h 2 V L1-N INT32 Value weight: Volt*10

What you can recommend?

Alex

  3-phase Modbus serial protocol EM and ET-rev.2.11.pdf (Size: 164.62 KB / Downloads: 16)