User Manual

Energy management
M-Bus Communication Protocol for EM24 M1
9
2.3 Instantaneous variables and meters
Table 1 - EM24DIN
Length
(byte)
VARIABLE
ENG. UNIT
Data
Format
Notes
#SUB
UNIT
VIF
byte
VIFE
byte
FRAME #1 (transmitted first)
4 KWh (+) TOT INT32 Engineering unit: Wh*100 0 1 -
4 Kvarh (+) TOT INT32 Engineering unit: Varh*100 0 1 1
4 KWh (+) L1 INT32 Engineering unit: Wh*100 1 1 -
4 KWh (+) L2 INT32 Engineering unit: Wh*100 2 1 -
4 KWh (+) L3 INT32 Engineering unit: Wh*100 3 1 -
4
W ∑
INT32
Engineering unit: Watt*0.1 0 1 -
4
VAR ∑
INT32 Engineering unit: Var*0.1 0 1 1
4
VA ∑
INT32 Engineering unit: VA*0.1 0 1 1
2
PF ∑
INT16
Negative values correspond to lead(C),
positive value correspond to lag(L).
Engineering unit: PF*0.001
0 1 1
4
V L-L ∑
INT32 4 1 1
4
V L-N ∑
INT32
Engineering unit: Volt*0.1
0 1 1
4 A L1 INT32 1 1 1
4 A L2 INT32 2 1 1
4 A L3 INT32
Engineering unit: Ampere*0.001
3 1 1
FRAME #2
4 W L1 INT32 1 1 -
4 W L2 INT32 2 1
-
4 W L3 INT32
Engineering unit: Watt*0.1
3 1
-
4 VAR L1 INT32 1 1 1
4 VAR L2 INT32 2 1 1
4 VAR L3 INT32
Engineering unit: Var*0.1
3 1 1
4 VA L1 INT32 1 1 1
4 VA L2 INT32 2 1 1
4 VA L3 INT32
Engineering unit: VA*0.1
3 1 1
2 PF L1 INT16 1 1 1
2 PF L2 INT16 2 1 1
2 PF L3 INT16
Negative values correspond to lead(C),
positive value correspond to lag(L).
Engineering unit: PF*0.001
3 1 1
FRAME #3
4 V L1-L2 INT32 5 1 1
4 V L2-L3 INT32 6 1 1
4 V L3-L1 INT32 7 1 1
4 V L1-N INT32 1 1 1
4 V L2-N INT32 2 1 1
4 V L3-N INT32
Engineering unit: Volt*0.1
3 1 1
4 KWh (+) PAR INT32 Engineering unit: Wh*100 4 1 -
4 Kvarh (+) PAR INT32 Engineering unit: Varh*100 1 1 1
4 KWh (-) TOT INT32 Engineering unit: Wh*100 5 1 -
4 Kvarh (-) TOT INT32 Engineering unit: Varh*100 2 1 1
4 Hour INT32 Engineering unit: Hour*0.01 0 1 1
2 Hz INT16 Engineering unit: Hz*0.1 0 1 1
FRAME #4
4
DMD W ∑
INT32 Engineering unit: Watt*0.1
4 1 -
4
DMD W ∑ max
INT32 Engineering unit: Watt*0.1
5 1 -
4
DMD VA ∑
INT32 Engineering unit: VA*0.1
4 1 1
4
DMD VA ∑ max
INT32 Engineering unit: VA*0.1
5 1 1
4 DMD A max INT32 Engineering unit: Ampere*0.001 4 1 1
Table 2 –EM24 M-Bus Measurement Unit Coding (VIF/VIFE).