Appendix
A.3 Internal registers
7KT PAC1200 multichannel current measuring system
74
System Manual, 11/2016, 2514374103-02
SunSpec registers
Start
address
(decimal)
End
address
(decimal)
Size
R/W Func-
tion
codes
Name
Type
Units Scaling
factor
Description
Value range/
OBIS mapping
40000
40001
2
RO 0x03
C_SunSp
ec_ID
Unit
32
N/A
N/A
SunSpec Mod-
bus Map. Indi-
cates that it is
valid.
0x53756e53
40002
40002
1
RO 0x03
C_SunSp
ec_DID
Unit
16
N/A
N/A
SunSpec com-
mon model
block
0x0001
40003
40003
1
RO 0x03
C_SunSp
ec_Length
Unit
16
regis-
ters
N/A
Length of the
common model
65
40004
40019
16
RO 0x03
C_Manufa
cturer
Series
(32)
N/A
N/A
Manufacturer's
name:
Siemens AG
40020
40035
16
RO 0x03
C_Model Series
(32)
N/A
N/A
Model name
PAC1200
40036
40043
8
RO 0x03
C_Options Series
(16)
N/A
N/A
Manufacturer-
specific value
—
40044
40051
8
RO 0x03
C_Version Series
(16)
N/A
N/A
Manufacturer-
specific value
—
40052
40067
16
RO 0x03
C_SerialN
umber
Series
(16)
N/A
N/A
Manufacturer-
specific value
—
40068
40068
1
RO 0x03
C_Device
Address
Unit
16
N/A
N/A
Modbus ID
(Modbus ad-
dress). Indicates
that it is valid.
247
40069
40069
1
RO 0x03
C_SunSp
ec_DID
Unit
16
N/A
N/A
SunSpec meter
model block
203
40070
40070
1
RO 0x03
C_SunSp
ec_Length
Unit
16
regis-
ters
N/A
Length of the
meter model
105
40071
40071
1
RO 0x03
M_AC_Cu
rrent
Unit
16
A
M_AC_Cu
rrent_SF
AC current (total
of active phas-
es)
0x8000
40072
40072
1
RO 0x03
M_AC_Cu
rrent_A
Unit
16
A
M_AC_Cu
rrent_SF
Phase A AC
current
1-0:31.4.0*255
40073
40073
1
RO 0x03
M_AC_Cu
rrent_B
Unit
16
A
M_AC_Cu
rrent_SF
Phase B AC
current
1-0:51.4.0*255
40074
40074
1
RO 0x03
M_AC_Cu
rrent_C
Unit
16
A
M_AC_Cu
rrent_SF
Phase C AC
current
1-0:71.4.0*255
40075
40075
1
RO 0x03
M_AC_Cu
rrent_SF
Unit
16
N/A
N/A
AC current scal-
ing factor**
-2
40076
40076
1
RO 0x03
M_AC_Vol
tage_LN
Unit
16
V
M_AC_Vol
tage_SF
Line to neutral
AC voltage
(average of the
active phases)
0x8000