Essential Information; Easy Connection; Average Value Calculation (Dmd); Frames - CARLO GAVAZZI EM24 W1 Manuel D'emploi

Essential information

Essential information
Measurement management

Easy connection

If the "Measure" parameter is set to A (easy connection), for the calculation of the active energy the power is always integrated, both in the case of imported
and exported power . The current direction does not affect the measurement. If the "Measure" parameter is set to B (without easy connection), both the active
imported and exported are available.

Average value calculation (dmd)

The system calculates the average value of electrical variables in a set integration interval.
Dmd values are available on display only. The dmd interval is automatically set equal to the transmission interval and it is not synchronized with the transmission
interval.
Communication

Frames

The frames are packages of messages sent by EM24 containing the variables measured. The variables and their encoding included in the frame depend on the
type of frame selected:
Frame 1
Variable Data Format
Total imported active energy 32 bit integer
Error flag 8 bit integer
Frame 2
Variable Data Format
Total imported active 32 bit integer
energy
Total imported reactive 32 bit integer
energy
Total exported reactive 32 bit integer
energy
Imported active power 32 bit integer
Error flag 8 bit integer
Frame 3
Variable Data Format
Total imported active 32 bit integer
energy
Total imported reactive 32 bit integer
energy
Total exported reactive 32 bit integer
energy
Imported active power 32 bit integer
Imported reactive power 32 bit integer
Exported reactive power 32 bit integer
14 EM24 W1 - Instruction manual | CARLO GAVAZZI Controls SpA
Engineering unit DIF
[hex]
Wh*100 04
01
Engineering unit DIF
[hex]
Wh*100 04
kVarh*0.1 04
kVarh*0.1 04
Watt*0.1 04
01
Engineering unit DIF
[hex]
Wh*100 04
kVarh*0.1 04
kVarh*0.1 04
Watt*0.1 04
Var 04
Var 04
VIF VIFE#1 VIFE#2
[hex] [hex] [hex]
05
FD 17
VIF VIFE#1 VIFE#2
[hex] [hex] [hex]
05
FB 82 75
FB 82 F5
2A
FD 17
VIF VIFE#1 VIFE#2
[hex] [hex] [hex]
05
FB 82 75
FB 82 F5
2A
FB 14
FB 94 3C
VIFE#3
[hex]
VIFE#3
[hex]
3C
VIFE#3
[hex]
3C