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EMCOMMS Series Meter

Installation Instructions

APPLICATIONS

The EMCOMMS Series Meter is a three channel meter, capable 

of monitoring single-phase, poly-phase and three-phase 

systems, or up to three independent single-phase loads with 

mixed amperage and voltage ratings. The meter supports 

BACnet MS/TP, Modbus RTU and Modbus ASCII protocols. The 

meter also features 2 pulse inputs to maintain flexibility during 

installation and operation.  With the EMCOMMS intelligent 

meter technology, the device self-configures baud rate, 

serial format, protocol, and address - eliminating additional 

configuration steps. 
The EMCOMMS meter is compatible with all sizes of ROG Series 

Current/Voltage Transducers (CVTs).  Each CVT is independently 

calibrated to measure and digitally communicate power values 

to the meter.  The system voltage connections are made directly 

into each CVT - keeping all high voltage in the panel and away 

from the meter.  Additionally, each CVT will auto-configure to the 

meter as they are plugged in, removing manual configuration 

from the installation.

LIT-12013042

Issued June 2018

 

WARNING: 

Risk of Electric Shock

This equipment must only be installed and serviced by qualified electrical 

personnel having the skills and knowledge related to the construction and 

operation of this electrical equipment and installation, and has received safety 

training to recognize and avoid the hazards involved. NEC Article 100. Current/

Voltage Transducers must be mounted inside a suitable fire and electrical 

enclosure. Do not use this product for life or safety applications. Do not install 

in hazardous or classified locations. Use a properly rated voltage sensing 

device to confirm that power is off. DO NOT depend on this product for voltage 

indication. Contact with components carrying hazardous voltage can cause 

electric shock and may result in severe personal injury or death. Do not operate 

this device at voltages exceeding specified working voltage to prevent device 

failure, which can result in personal injury or property damage.

WARNING: 

Risk of Personal Injury

!

Read, understand and follow the instructions before installing this product. 

All NFPA 70E requirements for safe work practices and for Personal Protective 

Equipment (USA) and other applicable local codes must be followed when 

installing this product. Only qualified trade installers and electrical personnel 

having the skills and knowledge related to the construction and operation of 

this electrical equipment and installation, and has received safety training to 

recognize and avoid the hazards involved (NEC Article 100) should install this 

product.

PRODUCT LIMITATION:

The EMCOMMS Series Meter and ROG Series Current/Voltage Transducers 

are designed to be used as a system. DO NOT connect anything other than a 

Johnson Controls ROG Series CVT to the RJ-11 jacks on the EMCOMMS meter.

INSTALLATION ENVIRONMENT:

The EMCOMMS Series Meter is intended for environments which control 

conductive pollution and the possibility of condensation or high humidity 

(Pollution level 2). High voltage components shall be mounted in an appropriate 

electrical enclosure. The EMCOMMS meter is a class 2 device.

ROG Series Current/Voltage Transducers (CVTs) may not be installed in a panel 

where they exceed 75% of the wiring space of any cross-sectional area within 

the panel. Meter shall be enclosed in a certified enclosure.

NOMENCLATURE

EMCOMMS

2

1

Power
Ground
Pulse Input 1

Pulse Input Ground 
Pulse Input 2

RS-485 +

Isolated Ground/Shield 
RS-485 -

Setup Bu

on

Line Status 

LED

Device 

Status LED

CV

St

at

us

 LE

Ds

CV

Co

nn

ec

on

s

RS485 

Status LED

Serial Number

511Ω Pullup bias resistor

511Ω Pulldown bias resistor

120Ω Bus termina�on resistor

Figure 1: EMCOMMS Series Meter

Data Cable (to meter)

Neutral (white)

Voltage (color)

Clasp Release

Rogowski

CVT Label

ROG-15S-03-BLK

0 to 1500 A

90 to 600 V

Model #

Amperage/Voltage

Orientation 

Coil

Label

Rating

Color Indicator

Figure 2: ROG Series Current/Voltage Transducer (CVT)

EMCOMMS Series Meter - Installation Instructions 

1

157-0161-0A

Released: June 15, 2018

Содержание EMCOMMS Series

Страница 1: ...eding specified working voltage to prevent device failure which can result in personal injury or property damage WARNING Risk of Personal Injury Read understand and follow the instructions before installing this product All NFPA 70E requirements for safe work practices and for Personal Protective Equipment USA and other applicable local codes must be followed when installing this product Only qual...

Страница 2: ... in mounting tabs Magnetic mount no drilling BIASING AND TERMINATION Use the jumpers to select the 120 ohm EOL resistor if EMCOMMS meter is the last device in your network If the meter is being installed within a network of other existing RS485 devices it may be necessary to use the 511 ohm biasing resistors based on your network or hardware requirments See Figure 4 EMCOMMS Meter Wiring for locati...

Страница 3: ...reference point 12 to 30 VDC 1 5 W Typ 24 VAC Class 2 130 mA Max Isolated 1500 V rms Read instructions before installing 60 C Max on off P WER PRINT with technology address Pulse Inputs Johnson Controls ROG sensors only EMCOMMS 120 511 Ro Se Ba Se Ba R L1 L2 L3 A B C S T Device Status Line Status Setup RS485 Status Termination 4 3 5 C D Figure 12 EMCOMMS Meter Address Label BACNET NETWORK CONNECTI...

Страница 4: ...LED RS485 Status LED EMCOMMS CVT Status LEDs R S T 2 1 Setup Bu on Line Status LED Device Status LED CVT Status LEDs RS485 Status LED R S T EMCOMMS DIAGNOSTIC CODES Diagnostic codes are presented one at at time using LED location color andsequencetoindicateaninstallationconcern A diagnostic code will repeat every 3 seconds until the user proceeds to the next diagnostic code or the meter returns to...

Страница 5: ...e Rate 50 Hz default configurable up to 500 Hz Pulse Active 100 ohms Pulse Undefined 100 1000 ohms Pulse Idle 1000 ohms Service Types Configurations 1Ph 2Ph 3Ph Wye 4 Wire 3Ph Delta 3 Wire Voltages 90VL N through 600VL L Frequency 45 65 Hz System Performance Accuracy 1 for V A kW kVAR kVA Current Voltage Transducer Accuracy 2 300A Rating 800A Rating 1500A Rating 2400A Rating 6000A Rating 1 30 300A...

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