E-Mon E-MM-RTU-D-N - Manual (Page 21)

Chapter 2 Installation Device Settings
Multi-Mon Multiple Circuit Energy Monitor 21
Device Settings Device Settings Device Settings Device Settings
Before operating your Multi-Mon, provide the device with information about
your particular environment. The device front display (see
Display
Operations (Multi-Mon) ) and the supplementary Power Software (see Power
Software Application Software ) allow you to configure the Multi-Mon for your
particular use.
Password Password Password Password
The Multi-Mon configuration setups are secured by a factory-preset
password. Contact your dealer for your primary password. Later, you will be
able to change the password via the device Access Menu (see
Meter
Security ).
Submeter System Submeter System Submeter System Submeter System
The Multi-Mon provides up to 36 submeters with separate measurement and
energy registers. Each submeter can service current inputs dedicated to a
particular consumer (metering submeter) or be used as a totalization meter
for automatic totalization of energy from different sub-consumers (totalization
submeter). Additionally, the Multi-Mon provides four more totalization
submeters (37 through 40) that you can use for totalization purposes when
all 36 metering submeters have been utilized.
A submeter remains inactive while there are no current inputs associated
with the submeter (see
Channel Assignments ), or until you link another
submeter as a source to its energy registers making it a totalization submeter
(see
Setting up Total and Tariff Registers ). The Channel Assignment setup
allows you to link one to three current inputs to each submeter and to specify
the primary rating of the current transformers. A totalization submeter
provides totalization of energy from any number of metering and totalization
submeters.
By default, your device is configured for 12 three-phase metering submeters
with 100A (maximum) current inputs (50A nominal rating).
Submeter Submeter Submeter Submeter Addressing Addressing Addressing Addressing
The Multi-Mon uses the Modbus communication protocol for data
transmission and accessing setups through communications. A full
description of the communications protocol is found in the Multi-Mon
Modbus Reference Guide provided with your device.
Each active submeter in the Multi-Mon is assigned a unique communication
address that allows accessing its private registers and setups. All submeter
addresses are assigned automatically in a sequential order starting with the
device base address that is programmed through the device Communication
Setup (see
Setting Up Communication Ports ). The following table illustrates
submeter addressing in the device with the base address N.
Device Ba Device Ba Device Ba Device Base Address se Address se Address se Address Submeter Number Submeter Number Submeter Number Submeter Number Submeter Address Submeter Address Submeter Address Submeter Address
SM 1 N
SM 2 N+1
…
SM 36 N+35
SM 37 N+36
…
N
SM 40 N+39
Your device is factory preset to address 1 and occupies the range of
addresses 1 through 12, configured for 12 three-phase submeters.
NOTES NOTES NOTES NOTES
1
1 1 1.... Device setup settings, excluding the alarm setpoints and data log setup, Device setup settings, excluding the alarm setpoints and data log setup, Device setup settings, excluding the alarm setpoints and data log setup, Device setup settings, excluding the alarm setpoints and data log setup,
are shared across all submeters. Though you can read or write them
are shared across all submeters. Though you can read or write them are shared across all submeters. Though you can read or write them are shared across all submeters. Though you can read or write them
using any submeter address, your changes affect all submeters in the
using any submeter address, your changes affect all submeters in the using any submeter address, your changes affect all submeters in the using any submeter address, your changes affect all submeters in the
device.
device. device. device.