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TM
E50H2, E50H5 Installation Guide
Analog_Input Objects
Use the Present_Value property of the Analog_Input objects for all read-only numeric variables in the meter other than those used specifically for device configuration (in the
Device Object) or data logging (in the Trend_Log objects). Only the E50H5 supports the data logging capability.
These objects support the Description and Reliability object properties and all required Analog_Input object properties. None of them are writable. The values that are not
instantaneous (i.e., Accumulated Energy, Max Demand, Pulse Input Counts) are non-volatile. They are not updated while control power is inactive, but their past values are
retained when power is restored. The Present_Value of the accumulated data objects (AI1, AI26-AI27 and AI42-AI44) use floating-point data types (all AI objects use floating
point data points). The resolution of the accumulated values decreases as the value grows larger over time and more of the significant digits precede the decimal point. If the
size of the value limits the resolution unacceptably, read and store the current value offline and reset the accumulators to restore finer resolution.
For complete assurance, check the Reliabilty property for a No_Fault_Detected status before reading the Present_Value. If the line voltage or input frequency of the system
being monitored falls out of the supported range, the corresponding alert bits (BI1-BI7) are set and the reliability property of any values that cannot be accurately measured
under those conditions returns Unreliable_Other.
#
Object_Name
Description
R/W
NV
Units
Range
Additional information
AI1
Energy
Real Energy
Consumption
R
NV
kWh
0 - 3.4+E38
AI2
kW_Total
Total Real Power
R
kW
0 - Max_Power (AI45)
AI3
kVAR_Total
Total Reactive Power
R
kVAR
0 - Max_Power (AI45)
AI4
kVA_Total
Total Apparent Power R
kVA
0 - Max_Power (AI45)
AI5
PF_Total
Total Power Factor
R
Power
Factor
0.00 - 1.00
1.00 for 100%
AI6
Volts_LL_Avg
Voltage L-L Average
R
Volts
AI7
Volts_LN_Avg
Voltage L-N Average
R
Volts
AI8
Current_Avg
Current Average
R
Amps
AI9
kW_A
Real Power Phase A
R
kW
0 - Max_Power (AI45)
AI10
kW_B
Real Power Phase B
R
kW
0 - Max_Power (AI45)
AI11
kW_C
Real Power Phase C
R
kW
0 - Max_Power (AI45)
AI12
PF_A
Power Factor Phase A R
Power
Factor
0.00 - 1.00
1.00 for 100%
AI13
PF_B
Power Factor Phase B R
Power
Factor
0.00 - 1.00
1.00 for 100%
AI14
PF_C
Power Factor Phase C R
Power
Factor
0.00 - 1.00
1.00 for 100%
AI15
Volts_AB
Votlage Phase A-B
R
Volts
AI16
Volts_BC
Voltage Phase B-C
R
Volts
AI17
Volts_AC
Voltage Phase A-C
R
Volts
AI18
Volts_AN
Voltage Phase A-N
R
Volts
AI19
Volts_BN
Voltage Phase B-N
R
Volts
AI20
Volts_CN
Voltage Phase C-N
R
Volts
AI21
Current_A
Current Phase A
R
Amps
AI22
Current_B
Current Phase B
R
Amps
AI23
Current_C
Current Phase C
R
Amps
AI24
Reserved_AI24
Reserved
R
n/a
Returns QNAN or any value
AI25
Frequency
Frequency
R
Hz
45.0-65.0
Returns QNAN if frequency is out of range (or no voltage
input present on Phase A)
BACnet Programming Information (cont.)