CARLO GAVAZZI EM 21, Communication Protocol Manual

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Energy management
EM24-DIN Communication Protocol
8
2.3 Instantaneous variables and meters
MODBUS : read only mode with functions code 03 and 04 Table 2.3-1
Modicom
address Physical
address
Length
(words)
VARIABLE
ENG. UNIT
Data
Format
Notes
3 00001 0000h
2 V L1-N INT32
3 00003 0002h 2 V L2-N INT32
3 00005 0004h
2 V L3-N INT32
3 00007 0006h 2 V L1-L2 INT32
3 00009 0008h
2 V L2-L3 INT32
3 00011 000Ah 2 V L3-L1 INT32
Value weight: Volt*10
3 00013 000Ch
2 A L1 INT32
3 00015 000Eh 2 A L2 INT32
3 00017 0010h 2 A L3 INT32
Value weight: Ampere*1000
3 00019 0012h 2 W L1 INT32
3 00021 0014h 2 W L2 INT32
3 00023 0016h 2 W L3 INT32
Value weight: Watt*10
3 00025 0018h 2 VA L1 INT32
3 00027 001Ah 2 VA L2 INT32
3 00029 001Ch 2 VA L3 INT32
Value weight: VA*10
3 00031 001Eh 2 VAR L1 INT32
3 00033 0020h 2 VAR L2 INT32
3 00035 0022h 2 VAR L3 INT32
Value weight: var*10
3 00037 0024h
2
V L-N
∑
INT32
3 00039
0026h 2
V L-L
∑
INT32
Value weight: Volt*10
3 00041 0028h
2
W
∑
INT32 Value weight: Watt*10
3 00043 002Ah
2
VA
∑
INT32 Value weight: VA*10
3 00045 002Ch
2
VAR
∑
INT32 Value weight: var*10
3 00047 002Eh 1 PF L1 INT16
3 00048 002Fh 1 PF L2 INT16
3 00049 0030h 1 PF L3 INT16
3 00050
0031h 1
PF
∑
INT16
Negative values correspond to
lead(C), positive value correspond
to lag(L)
Value weight: PF*1000
3 00051 0032h 1 Phase sequence INT16
The value –1 corresponds to L1-L3-
L2 sequence, the value 0
corresponds to L1-L2-L3 sequence.
The phase sequence value is
meaningful only in a 3-phase
system
3 00052 0033h 1 Hz INT16 Value weight: Hz*10
3 00053 0034h 2 KWh(+) TOT INT32 Value weight: kWh*10
3 00055 0036h 2 Kvarh(+) TOT INT32 Value weight: kvarh*10
2.4 Firmware version and revision code
MODBUS : read only mode with functions code 03 and 04 limited to a word at a time Table 2.4-1
Modicom
address Physical
address
Length
(words)
VARIABLE
ENG. UNIT
Data
Format
Notes
3 00771 0302h 1 Version code UINT 16 Value=0: Version “A”
3 00772 0303h 1 Revision code UINT 16 Value=0: Revision “0”
2.5 Programming lock status
MODBUS : read only mode with functions code 03 and 04 limited to a word at a time Table 2.5-1
Modicom
address Physical
address
Length
(words)
VARIABLE
ENG. UNIT
Data
Format
Notes
3 00773 0304h 1 Programming lock (trimmer
position in the rear of
the display) UINT 16 Value=1: programming locked
Value=0: programming unlocked