Installation Guide
Power Monitoring
Series 4100 Modbus
TM
32
SunSpec Register Blocks (cont.)
Se
rie
s
41
00
R
eg
is
ter
R/W
NV
Format
Units
Scale
Range
SunSpec Name
Description
•
40168
R
NV
ULong
VAR-
hours
M_Energy_VAR_SF
0x0 to 0xFFFFFFFF
M_Export_VARh_
Q4A
Phase A - Quadrant 4: Total Exported Reactive Energy
•
40169
•
40170
R
NV
ULong
VAR-
hours
M_Energy_VAR_SF
0x0 to 0xFFFFFFFF
M_Export_VARh_
Q4B
Phase B - Quadrant 4: Total Exported Reactive Energy
•
40171
•
40172
R
NV
ULong
VAR-
hours
M_Energy_VAR_SF
0x0 to 0xFFFFFFFF
M_Export_VARh_
Q4C
Phase C - Quadrant 4: Total Exported Reactive Energy
•
40173
•
40174
R
NV
UInt
SF
1
M_Energy_VA_SF
Reactive Energy Scale Factor
Events
•
40175
R
NV
ULong
Flags
M_Events
Bit Map. See M_EVENT_flags. 0 = no event
•
40176
Event
Bit
Description
M_EVENT_Power_Failure
0x00000004
Loss of power or phase
M_EVENT_Under_Voltage
0x00000008
Voltage below threshold (phase loss)
M_EVENT_Low_PF
0x00000010
Power factor below threshold (can
indicate misassociated voltage and
current inputs in 3-phase systems)
M_EVENT_Over_Current
0x00000020
Current input over threshold (out of
measurement range)
M_EVENT_Over_Voltage
0x00000040
Voltage input over threshold (out of
measurement range)
M_EVENT_Missing_Sensor
0x00000080
Sensor not connected (not supported)
M_EVENT_Reserved1-8
0x00000100 to
0x00008000
Reserved for future SunSpec use
M_EVENT_OEM1-15
0x7FFF000
Reserved for OEMs (not used)
End of SunSpec Block
•
40177
R
NV
UInt
0xFFFF
C_SunSpec_DID = 0xFFFF
Uniquely identifies this as the last SunSpec block
•
40178
R
NV
UInt
0x0000
C_SunSpec_Length = 0
Last block has no length
