CARLO GAVAZZI EM24 W1, User Manual

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Essential information
EM24 W1 - Instruction manual | CARLO GAVAZZI Controls SpA EM24 W1 - Instruction manual | CARLO GAVAZZI Controls SpA
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 Engineering unit DIF
[hex]
VIF
[hex]
VIFE#1
[hex]
VIFE#2
[hex]
VIFE#3
[hex]
Total imported active energy 32 bit integer Wh*100 04 05
Error flag 8 bit integer 01 FD 17
Frame 2
Variable
Data Format Engineering unit DIF
[hex]
VIF
[hex]
VIFE#1
[hex]
VIFE#2
[hex]
VIFE#3
[hex]
Total imported active
energy
32 bit integer Wh*100 04 05
Total imported reactive
energy
32 bit integer kVarh*0.1 04 FB 82 75
Total exported reactive
energy
32 bit integer kVarh*0.1 04 FB 82 F5 3C
Imported active power 32 bit integer Watt*0.1 04 2A
Error flag 8 bit integer 01 FD 17
Frame 3
Variable
Data Format Engineering unit DIF
[hex]
VIF
[hex]
VIFE#1
[hex]
VIFE#2
[hex]
VIFE#3
[hex]
Total imported active
energy
32 bit integer Wh*100 04 05
Total imported reactive
energy
32 bit integer kVarh*0.1 04 FB 82 75
Total exported reactive
energy
32 bit integer kVarh*0.1 04 FB 82 F5 3C
Imported active power 32 bit integer Watt*0.1 04 2A
Imported reactive power 32 bit integer Var 04 FB 14
Exported reactive power 32 bit integer Var 04 FB 94 3C