elgris SMART METER LAN - 6 Modbus Tcp; Register Mapping Common Model; Register Mapping WYE Connect Meter Model

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6 MODBUS TCP
The elgris SMART METER includes a MODBUS TCP server with parameter mapping similar to SunSpec
parameter list 203. By offering an open protocol the implementation can be easily adopted to the
user needs.
The MODBUS uses port 502 by default.
6.1 Register mapping Common Model
The first register address is 40000 and the registers can be read with function 0x03.
Address
Size
Name
Label
Value
Type
R/W
Description
40000
2
ID
Common
1
uint32
R
Value = "SunS" (0x53756e53).
Uniquely identifies this as a
SunSpec MODBUS Map
40002
1
DID
SunSpec_DID
1
uint16
R
Value = 0x0001. Uniquely identifies
this as a SunSpec Common Model
Block
40003
1
L
SunSpec_Length
65
uint16
R
65 = Length of block in 16-bit
register
40004
16
Mn
Manufacturer
string
R
"elgris"
40020
16
Md
Model
string
R
"SMART METER"
40036
8
Opt
Options
String
R
Not used, for future compatibility
40044
8
Vr
Version
string
R
"1.10.15"
40052
16
SN
Serial Number
string
R
19000XXXX (SMA serial compliant)
6.2 Register mapping WYE connect Meter Model
Address
Size
Name
Label
Value
Type
R/W
Description
40069
1
ID
WYE-connect
three phase
(abcn) meter
1
uint16
R
Value = 203
Uniquely identifies this
as a
SunSpec 203 MODBUS
Map
40070
1
L
SunSpec_Length
105
uint16
R
105 = Length of block in
16-bit register
40071
1
A
Amps
int16
R
Total AC current
40072
1
AphA
Amps Phase A
int16
R
Phase A current
40073
1
AphB
Amps Phase B
int16
R
Phase B current
40074
1
AphC
Amps Phase C
int16
R
Phase C current
40075
1
A_SF
sunssf
R
Current scale factor
40076
1
PhV
Voltage LN
int16
R
Line to neutral AC
voltage
40077
1
PhVphA
Voltage AN
int16
R
Phase voltage AN
40078
1
PhVphB
Voltage BN
int16
R
Phase voltage BN
40079
1
PhVphC
Voltage CN
int16
R
Phase voltage CN
40080
1
PPV
Voltage LL
int16
R
Line to Line AC voltage
40081
1
PhVphAB
uint16
R
Line voltage AB
40082
1
PhVphBC
uint16
R
Line voltage BC