Veris Industries E50H Series Installation Manual page 23

Compact power and energy meters with bacnet ms/tp support

Table of Contents

E50H2, E50H5 Installation Guide

BACnet Programming Information (cont.)

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

AI1

Energy

Real Energy

Consumption

AI2

kW_Total

Total Real Power

AI3

kVAR_Total

Total Reactive Power

AI4

kVA_Total

Total Apparent Power R

AI5

PF_Total

Total Power Factor

AI6

Volts_LL_Avg

Voltage L-L Average

AI7

Volts_LN_Avg

Voltage L-N Average

AI8

Current_Avg

Current Average

AI9

kW_A

Real Power Phase A

AI10

kW_B

Real Power Phase B

AI11

kW_C

Real Power Phase C

AI12

PF_A

Power Factor Phase A R

AI13

PF_B

Power Factor Phase B R

AI14

PF_C

Power Factor Phase C

AI15

Volts_AB

Votlage Phase A-B

AI16

Volts_BC

Voltage Phase B-C

AI17

Volts_AC

Voltage Phase A-C

AI18

Volts_AN

Voltage Phase A-N

AI19

Volts_BN

Voltage Phase B-N

AI20

Volts_CN

Voltage Phase C-N

AI21

Current_A

Current Phase A

AI22

Current_B

Current Phase B

AI23

Current_C

Current Phase C

AI24

Reserved_AI24

Reserved

AI25

Frequency

ZL0071-0F

Page 23 of 28

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R/W

Units

kWh

0 - 3.4+E38

0 - Max_Power (AI45)

kVAR

0 - Max_Power (AI45)

kVA

0 - Max_Power (AI45)

Power

0.00 - 1.00

Factor