SCADAmetrics EtherMeter EM-100 User manual

EtherMeter®
FLOW METER GATEWAY FOR SCADA, TELEMETRY, &
BUILDING AUTOMATION SYSTEMS
COVERED BY US PATENT NO. 8,219,214
Installation, Operation, and
Maintenance Manual
Version 2.83.01
17 November 2021
AUTHORIZED SCADAMETRICS RESELLER
SCADAmetrics®
St. Louis, Missouri USA
scadametrics.com

1
TABLE OF CONTENTS
Ch. Title Page
1Introduction and Gallery 2
2 Recommended Skills And Tools 7
3Specifications 8
4Electrical Interface 12
5Meter Compatibility 14
6Sensus Protocol Meter Support 15
7Neptune Protocol Meter Support 18
8K-Frame Protocol Meter Support 21
9Pulse Meter Support 24
10 PLC/RTU/Computer Interface 27
11 Radio Interface 29
12 Auxiliary I/O Channels 31
13 Setup and Diagnostic Utilities 35
14 MODBUS Protocol Support 50
15 DF1 and EtherNet/IP Protocol Support 57
16 ASCII Protocol Support 66
17 HTTP Web Server 68
18 Telnet Server 70
19 Network Security 71
20 References 72
21 Limited Warranty 74
22 Firmware License 76
CONTACT:
SCADAmetrics
1133 POND ROAD
WILDWOOD, MO 63038
VOICE: 636.405.7101
FAX: [phone]
scadametrics.com
© 2008-2021 SCADAMETRICS
ALL RIGHTS RESERVED
Trademarks Referenced Within This Document:
Acculinx™ and eLinx™ are trademarks of Master Meter, Inc..
ADE®is a registered trademark of Badger Meter.
CIP™ is a trademark of ODVA.
Cyble™ is a trademark of Itron Corp.
EtherMeter®, SCADAmeter®, and SCADAmetrics®are trademarks of Navionics Research Inc dba SCADAmetrics
EtherNet/IP™ is a trademark of ControlNet International.
E-Coder™ and ProRead™ are trademarks of Neptune Technology Group.
HawkEye™ is a trademark of Metron Farnier, Inc.
HyperTerminal Private Edition™ is a trademark of Hilgrave Software.
ICE®is a registered trademark of Sensus Metering Systems.
InVISION™ is a trademark of Honeywell / Elster AMCO, Inc.
Lexan®is a registered trademark of SABIC Innovative Plastics.
MODBUS®is a registered trademark of Schneider Electric.
RSLinx™ is a trademark of Rockwell Automation.
Sensorlex®is a registered trademark of Dataforth Corp.
Tomahawk® Encoder is a registered trademark of RG3 Meter Company.
Windows®is a registered trademark of Microsoft Corporation.

2
1 INTRODUCTION AND GALLERY
For many years, SCADA system integrators have struggled to eliminate the totalization errors that
resulted from using pulse-output flow meters.
With pulse-technology, the most common problem is the inevitable discrepancies between the
meter readings displayed within the SCADA system and the readings displayed on the physical
meters themselves.
Today, SCADAmetrics has eliminated these errors with the introduction of the EtherMeter®–the
telemetry appliance that can ensure absolute agreement between the SCADA system and its
connected meters… also known as revenue-grade accuracy.
The effectiveness of the EtherMeter is based upon an embrace of the latest AMI (Advanced
Metering Infrastructure) technology. Driven by the powerful SCADAmeter®protocol conversion
engine, it works by translating totalization and flow rate signals from modern, encoder-based flow
meters into industrial protocols that SCADA systems can understand, such as MODBUS, Allen
Bradley DF1, and EtherNet/IP.
And for flow-metering applications where encoder technology is not readily available (e.g. chemical,
natural gas, petroleum, steam, etc.), the EtherMeter can process most 2-wire pulse signals, as well.
The purpose of this manual is to
provide the system integrator with
the know-how to set up, install, and
maintain the EtherMeter –the new
vital component built for today’s
modern SCADA systems.
EtherMeter Installed in a Telemetry/SCADA Control
Panel at a Water District Pumping Station.
Jersey County Rural Water District (Grafton, Illinois).
Pump Station by Dakota Pump (Mitchell, South Dakota).

3
EtherMeters Installed as part of an Airport Energy/Utility Management System.
JFK International Airport (New York City, NY)
EtherMeters Installed as part of an Irrigation Monitoring System.
Turlock Irrigation District (Turlock, CA)

4
EtherMeters Installed as part of a Metropolitan Zoo Building Automation System.
St. Louis Metropolitan Zoo (St. Louis, MO)
EtherMeters Installed as part of a US Air Force Base
Utility Management SCADA System.
Davis-Monthan AFB (Tucson, AZ)

5
EtherMeters Installed as part of a Satellite-Based,
Frac Water Automatic Metering System. (Near Williston, ND)
EtherMeters Installed as part of a Building Automation System.
AutoDesk Inc. (Boston, MA)

6
EtherMeters Installed as part of a University
Building Automation System.
Illinois Institute of Technology (Chicago, IL)

7
2 RECOMMENDED SKILLS AND TOOLS
A. SKILLS FOR INSTALLING AND TROUBLESHOOTING AN ETHERMETER:
IT IS RECOMMENDED THAT THE OWNER OR SYSTEM INTEGRATOR READ THIS
MANUAL THOROUGHLY BEFORE ATTEMPTING INSTALLATION, SETUP, OR
TROUBLESHOOTING.
THE ETHERMETER IS DESIGNED TO BE SET UP AND INSTALLED BY A PROFESSIONAL
ELECTRICIAN OR TECHNICIAN WITH EXPERTISE IN THE FIELD OF SCADA,
TELEMETRY, INDUSTRIAL AUTOMATION, AND/OR INSTRUMENTATION.
IF THE SETUP TECHNICIAN LACKS THE REQUIRED EXPERTISE, THEN IT IS
RECOMMENDED THAT A LOCAL INDUSTRIAL TECHNICIAN BE HIRED FOR THIS
PURPOSE. AT A MINIMUM, THE PROFESSIONAL SHOULD BE FAMILIAR WITH THE
FOLLOWING CONCEPTS:
1. BASIC WIRING TECHNIQUES
2. GROUNDING
3. AC/DC POWER SUPPLIES
4. SURGE SUPPRESSION AND ISOLATION TECHNIQUES
5. BASIC FLOW METER TOTALIZATION AND FLOW CONCEPTS
6. USER EXPERIENCE WITH TERMINAL EMULATION SOFTWARE (EG HYPERTERMINAL, PUTTY)
7. USER EXPERIENCE WITH TELNET SOFTWARE
8. USER EXPERIENCE WITH WEB-BROWSER SOFTWARE
9. USING AND TROUBLESHOOTING INDUSTRIAL COMM PROTOCOLS
(MODBUS, DF1, ETHERNET/IP, AS APPLICABLE)
10. RS-232 SERIAL PORTS, CABLING, AND COMMUNICATIONS
11. RS-485 SERIAL PORTS, CABLING, AND COMMUNICATIONS
12. ETHERNET PORTS, CABLING, ADDRESSING, ROUTING, AND COMMUNICATIONS
13. ANALOG INPUTS (EG. 4-20 MILLIAMP) (IF APPLICABLE)
14. DIGITAL I/O AND SOLID-STATE RELAYS (IF APPLICABLE)
15. RADIO INTEGRATION (IF APPLICABLE)
16. CELLULAR GATEWAY INTEGRATION (IF APPLICABLE)
17. RTU AND/OR PLC INTEGRATION (IF APPLICABLE)
B. TOOLS FOR INSTALLING AND TROUBLESHOOTING AN ETHERMETER:
1. NOTEBOOK COMPUTER EQUIPPED WITH SERIAL PORT
Caution: Certain USB-Serial Converters do not support all serial
port parameters, such as 7E1, 7O1, and 7N2.
Typically, 8N1 is well-supported.
2. NULL-MODEM ADAPTER (DB9F-DB9F)
3. “HYPERTERMINAL” OR “TERA TERM” TERMINAL EMULATION SOFTWARE (OR EQUIVALENT)
4. ETHERNET PATCH CABLE
5. VOLTMETER / AMMETER
6. TWO (2) SMALL FLAT-HEAD SCREWDRIVERS
7. ONE (1) SMALL #1 PHILIPS SCREWDRIVER
C. TOOLS FOR ATTACHING DIN-RAIL TO A CONTROL PANEL:
1. DIN-RAIL (35MM RECOMMENDED)
2. DIN-RAIL CUTTER (EG. ATMCO LB-100)
3. POWER OR CORDLESS DRILL
4. THREAD-TAPPING TOOL SET
5. MACHINE SCREWS, WASHERS

8
3 SPECIFICATIONS
A. Meter Communications
Meter Input Channels: Channel 1: Protocol or Pulse
Channel 2: Protocol or Pulse
Galvanic Isolation: 1500V
Protocols: Sensus Variable-Length: 4 to 9 Digit
Sensus Fixed-Length: 4 to 6 Digit
Neptune E-Coder/Pro-Coder/Mach10 Plus: 8 to 9 digit
Neptune ProRead Basic: 3 to 6 digit
K-Frame (Honeywell-Elster-AMCO, ABB, Kent): 6 Digit
Pulse (Dry Contact) Output, 2000 Hz Max.
Protocol Recognition: Encoder Auto-Detect
Flow Rate Calculation: dV/dT (Fixed dT or Fixed dV)
Co-Metering Compatibility: Yes, When Optional SDA or SDAW Duplexer installed.
B. Serial Communications
Ports: RS-232C (DB9-Male Jack, DTE)
RS-485 (Phoenix Terminal)
Galvanic Isolation: 2500V
Speed: 300 to 115200 bps
Port Parameters: 8N1, 7E1, 7O1, 7N2
Handshaking: Fixed RTS, Null Modem,
RTS/CTS, CD-Collision Avoidance,
None
Industrial Protocols: MODBUS/RTU,
MODBUS/ASCII,
DF1/FULL-DUPLEX,
DF1/RADIO-MODEM,
RAW-ASCII (ASCII-Version Only),
ADAM-4000 (ADAM-Version Only)
REMOTE VFDisplay (VFDisplay-Version Only)
Setup Terminal: ANSI, 25x80 char, 9600, 8N1
C. Ethernet Communications
Speed: 10 Mbps (10BaseT), Half or Full Duplex
Galvanic Isolation: 1500Vrms
Addressing: DHCP or Static IP
Web Server: Yes
Ping Server: Yes
Industrial Protocols: MODBUS/TCP (4 Sockets),
EtherNet/IP,PCCC-Encapsulation (4 Sockets),
MODBUS/UDP
MAC ID: IEEE-Assigned OUI: 00-1D-C8

9
D. Mechanical/Electrical/Environmental
Dimensions: 8.125” x 4.625” x 1.9375”
Weight: 13.5 Ounces
Temperature Range: -20C to +70C
Relative Humidity: 5% to 95%, Non-Condensing
Panel Mounts: Two (2) Universal Din-Rail Clips
LCD Display: 2x16 Character, Backlit
Supply Voltage: 10 VDC to 36 VDC
Supply Current: 275 mA Max. (2.50 W Max.)
Nominal: 63 mA @ 24 VDC,
Nominal: 60 mA @ 24 VDC w/ Backlight OFF
Terminal Block Conductors: 16AWG Max, 26AWG Min.
Internal Power Efficiency: 76%, Typical
Circuit Protection: Fused (1000mA) + 10 TVSS Diodes
Environmental: ROHS-Compliant, Lead-free
DIMENSIONAL DRAWINGS
Figure 3A. Dimensional Drawing

10
E. Auxiliary Inputs/Outputs
Analog Inputs: Two 4-20mA Inputs (10-bit A/D),
240 Ohm Loop Resistance
Configurable as 0-5VDC (10bit A/D)
Integrated Loop Power Supply: +24VDC / 42mA
Aux Digital I/O: Three (3):
Each Configurable as Digital Input or Output
Output(s): TTL (0-5VDC) Output
Input(s): TTL Dry-Contact Input
MODBUS Fn. Codes: 01 - Read Coil Status,
02 - Read Input Status,
03 - Read Holding Registers,
04 - Read Input Registers,
05 - Force Single Coil
06 - Write Single Holding Register
15 - Force Multiple Coils
DF1 Codes: Protected Typed Logical Read With 3 Address Fields
Protected Typed Logical Write With 3 Address Fields
ADAM-4000 Fn. Codes: #AAn - Read Analog Inputs,
(ADAM-Version Only) $AA6 - Read Discrete Inputs,
#AA1n0d - Write Discrete Outputs,
$AAM - Read Device ID
F. Standards and Regulatory Compliances
Safety (USA, Mexico): UL 62368-1 Recognition (MET Labs File No. E112874)
Safety (Canada): CSA C22.2 No. 62368-1 Recognition (MET Labs File No. E112874)
Emissions (USA): FCC Part 15, Class A
Emissions (Canada): ICES-003
Meter Interface: AWWA C707-05
Environmental: ROHS-Compliant, Lead-Free
Manufacturing Location: USA
G. Safety Considerations and Warnings
The following warnings and guidelines should be followed in order to ensure safe operation of your EtherMeter:
• Do not attempt to service the internal circuitry of the EtherMeter. This device contains no user-serviceable
parts or adjustments.
• Carefully inspect the work area in which the EtherMeter will be located to ensure against hazards such as
damp floors, ungrounded power extension cords, and missing ground connections.
• Before operating the EtherMeter, ensure that the external power source is an NRTL-listed power supply
that is rated for a DC voltage between 10 and 36 VDC and rated for a minimum current of 275 mA. If you
are not sure of the type of power source, contact SCADAmetrics or your SCADAmetrics Distributor.
• The secondary output circuits of the EtherMeter are SELV (Safety Extra Low Voltage). Ensure that the
secondary output circuits are not connected with hazardous energy levels.
• The EtherMeter has been evaluated and NRTL-recognized for use in a Pollution Degree 2 environment.
• The EtherMeter must be examined for compliance with the applicable safety standard after installation into
the final enclosure.
• The EtherMeter must be installed in accordance with all applicable local electrical codes.
• If the EtherMeter is exposed to moisture or condensation, disconnect it from the power source immediately
and obtain service assistance.
• If the EtherMeter exhibits unexpected behavior, such as smoking or becoming extremely hot, disconnect it
from power sources immediately and then obtain service assistance.
• Ensure that the EtherMeter’s cover is secure on completion of installation to reduce safety hazards.

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H. Environmental Considerations and Cautions
The following is a list of environmental considerations that will help ensure safe and efficient operation of your
EtherMeter:
• Do not position the EtherMeter near high-powered radio transmitters or electrical equipment, such as
electrical motors or air conditioners. Interference from electrical equipment cancause intermittent failures.
• Do not install the EtherMeter in areas where condensation, water, or other liquids may be present. These
may cause safety hazards and equipment failure.
I. FCC Class A Notice
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference received, including interference that may cause
undesired operation.
Note: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant
to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment. This equipment generates,uses, and
can radiate radio frequency energy, and if it is not installed and used in accordance with the instruction manual,
it may cause harmful interference to radio communications. Operation of this equipment in a residential area is
likely to cause harmful interference, in which case the user will be required to correct the interference at his own
expense. Modifications: Any modifications made to this device that are not approved by SCADAmetrics mayvoid
the authority granted to the user by the FCC to operate this equipment.
Report: http://scadametrics.com/PDF/EMC26372-FCC.pdf
J. ICES Notice (Canada)
This Class [1] digital apparatus complies with Canadian ICES-003.
Report: http://scadametrics.com/PDF/EMC26372-IC.pdf

12
4 ELECTRICAL INTERFACE
Hookup Wiring Diagram:
Model EM-100 EtherMeter®
Flow Meter Gateway for SCADA, Telemetry & Building Automation Systems
By SCADAmetrics®
US Patent No. 8,219,214
ETHERNET
SERIAL
RS.232
UL 62368-1
CSA C22.2
No. 62368-1
E112874
TESTED TO COMPLY
WITH FCC STANDARDS
PWR
TXD
RXD
RTS
DCD
M1.CLK
M1.DATA
M2.DATA
M2.CLK
POWER
1 PWR+
2 PWR-
10-36VDC
Max: 275mA
Max: 2.5W
METER.1 METER.2 RS.485
14 M1.CLK
15 M1.DATA
16 M1.CMN
17 M2.CLK
18 M2.DATA
19 M2.CMN
20 485.A(-)
21 485.B(+)
22 485.CMN
MAC: 00:1D:C8:##:##:##
FLASH PROGRAMMING HEADER
(INTERNAL – FACTORY USE ONLY)
J4 J5
AIN1:
ON=4-20mA
OFF=0-5V
AIN2:
ON=4-20mA
OFF=0-5V
(INTERNAL)
LCD DISPLAY
RS-232
-N/C-
BACKL IGHT
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 FACTORY
RESET
PWR+ PWR-
AUX3+ AUX3-
LOOP+
AIN1 + AIN1-
AIN2 + AIN2-
AUX1+ AUX1-
AUX2+ AUX2-
M1-TX
M1-RX
M1-CMN M2-TX
M2-RX M2-CMN
485-A 485-B
485-CMN
RS-485
120.TERM
SETUP
RS-485 RS-232
RUN
-N/C- -N/C-
SERIAL PORT
EXPLODED VIEW
1 DCD (Input), CANALSO FUNCTION AS CTS
2 RxD (Input)
3 TxD (Output)
4 DTR (Output), ALWAYS ASSERTED
5 GROUND(SERIAL ONLY, ISOLATED)
6–
7 RTS (Output)
8–
9–
Figure 4A. Electrical Interface
POWER AND ISOLATION NOTES:
1. The EtherMeter requires a 10-36 VDC, Isolated-Output-Type Power Supply. The power
consumption of the EtherMeter is 2.50W Max (~1.50W Typical).

13
DIP SWITCH DEFINITIONS:
#1
#2
#3
#4
#5
#6
#7
#8
UP
RS-232C SERIAL
PORT ACTIVE
(RS-485 SERIAL
PORT INACTIVE)
UP
RS-485 SERIAL
PORT ACTIVE
(RS-232C SERIAL
PORT INACTIVE)
UP
120 OHM
TERMINATION
RESISTOR
ACTIVE
(RS-485 ONLY)
RESERVED
-N/C-
RESERVED
-N/C-
RESERVED
-N/C-
UP
BACKLIGHT AND
POWER-LED ON
UP
SETUP MODE
MODBUS/SERIAL
DF1/SERIAL
INACTIVE
DOWN
RS-485 SERIAL
PORT IN-ACTIVE
RS-232C SERIAL
PORT ACTIVE
DOWN
RS-232C SERIAL
PORT INACTIVE
(RS-485 SERIAL
PORT ACTIVE)
DOWN
120 OHM
TERMINATION
RESISTOR
INACTIVE.
(RS-485 ONLY)
DOWN
BACKLIGHT AND
POWER-LED OFF
(POWER SAVING
MODE)
DOWN
RUN MODE
Figure 4B. DIP Switch Definitions
FACTORY-RESET BUTTON:
The FACTORY RESET Button is located to the right of the dip switches. When the FACTORY
RESET button is depressed during a power cycle (or soft reboot), then all user-settings are
discarded, and the factory default settings are restored.

14
5 METER COMPATIBILITY
Encoder-Based Flow Meters
The EtherMeter features two flow meter ports, each of which is capable of reading most 3-wire
“absolute encoder” registers. In general, encoder registers can be classified as one of the following:
•Sensus Protocol
•Neptune Protocol
•K-Frame Protocol
To maximize ease-of-use, the EtherMeter automatically recognizes the connected meters’
communication protocols, so it’s truly “plug and play”.
Compatible encoder-based flow meters include those produced by ABB, Actaris, Badger,
Honeywell-Elster-AMCO-Kent, Hersey, Invensys, Itron, Master-Meter, Metron-Farnier, Neptune,
Rockwell, Schlumberger, Sensus, Siemens, Sitrans, and perhaps others.
The complete Meter Compatibility Matrix document is available for download from the Support
section of scadametrics.com. This document details the various meter brands and models that are
compatible with the EtherMeter, along with specific configuration details for each meter.
If there is a Sensus-, Neptune-, or K-Frame-protocol encoder meter register that is not listed within
the document as compatible based upon testing, and you would like to see it listed as such, then
please contact SCADAmetrics. Note that in such cases, we may request a register for testing and
verification.
Pulse-Based Flow Meters
The EtherMeter’s flow meter ports are compatible with most pulse-based flow meters. Compatible
signals include dry-contact, solid-state contact, and open-collector.
Flow meters that produce active voltage or current pulses are NOT compatible, and would
necessarily require conversion to a dry-contact-type signal.

15
6 SENSUS PROTOCOL METER SUPPORT
The Sensus Protocol, as implemented within the Sensus OMNI, iPERL, & ICE™ registers, the
Badger HRE & ADE registers, and numerous compatibles, is fully supported by the EtherMeter.
Important Notes:
(1) Sensus-compatible registers do not always provide the maximum resolution (digits) by default,
and therefore the register or meter may require factory pre-programming. See the Meter
Compatibility Matrix for configuration details.
(2) Wire color-coding for Sensus-compatibles varies among meter brands. See the Meter
Compatibility Matrix for details.
RED
(TxD-Clock) BLACK
(Common)
GREEN
(RxD)
SENSUS ENCODER REGISTER
Figure 6A. Sensus ICE™ – Register Diagram.
SENSUS PROTOCOL:
7 DATA BITS, 1 START BIT, 1 STOP BIT, EVEN PARITY, ASCII ENCODING
SAMPLE READ. TOTALIZATION = 99999987
V ; R B 9 9 9 9 9 9 8 7 ; I B L O T 0 3 0 1 1 5 <CR>
TOTALIZATION DATA
(DIGITS 1-N) TERMINATION
DELIMITER
START
DELIMITER
Figure 6B. Sensus –Protocol Diagram Example (Total=”99999987”).
To connect a Sensus-Protocol Register to Meter Channel 1:
EtherMeter Terminal
Sensus-Compatible Wire Color*
*Note: Color codes may vary by meter brand.
See Meter Compatibility Matrix for details.
14
Red
15
Green
16
Black
To connect a Sensus-Protocol Register to Meter Channel 2:
EtherMeter Terminal
Sensus-Compatible Wire Color*
*Note: Color codes may vary by meter brand.
See Meter Compatibility Matrix for details.
17
Red
18
Green
19
Black

16
METER HOOKUP FOR SENSUS-COMPATIBLE REGISTERS:
The following diagram demonstrates the hookup of a Sensus-compatible encoder register to Meter
Channel 1 of the EtherMeter. Terminals 14, 15, and 16 are used in this case. Hookup to Meter
Channel 2 will be identical, except terminals 17, 18, and 19 are used.
Model EM-100 EtherMeter®
Flow Meter Gateway for SCADA, Telemetry & Building Automation Systems
By SCADAmetrics®
US Patent No. 8,219,214
ETHERNET
SERIAL
RS.232
UL 62368-1
CSA C22.2
No. 62368-1
E112874
TESTED TO COMPLY
WITH FCC STANDARDS
PWR
TXD
RXD
RTS
DCD
M1.CLK
M1.DATA
M2.DATA
M2.CLK
POWER
1 PWR+
2 PWR-
10-36VDC
Max: 275mA
Max: 2.5W
METER.1 METER.2 RS.485
14 M1.CLK
15 M1.DATA
16 M1.CMN
17 M2.CLK
18 M2.DATA
19 M2.CMN
20 485.A(-)
21 485.B(+)
22 485.CMN
MAC: 00:1D:C8:##:##:##
LCD DISPLAY
RS-232
-N/C-
BACKL IGHT
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 FACTORY
RESET
PWR+ PWR- AUX3+ AUX3-
LOOP+
AIN1+ AIN1- AIN2+ AIN2-
AUX1+ AUX1- AUX2+ AUX2-
M1-TX
M1-RX
M1-CMN M2-TX M2-RX M2-CMN
485-A 485-B 485-CMN
RS-485
120.TERM
SETUP
RS-485 RS-232
RUN
-N/C- -N/C-
SENSUS-COMPATIBLE
ENCODER REGISTER
R G
B
24VDC+
24VDC–
Figure 6C. Sensus-Compatible Register Hookup to EtherMeter

17
PARALLEL ETHERMETER/AMR HOOKUP FOR SENSUS-COMPATIBLE REGISTERS:
An EtherMeter and a Sensus-Compatible AMI/AMR endpoint may be connected in parallel to a
single meter register with the aid of a SCADAmetrics Duplexer (Part No. SDA or SDAW).
A Duplexer may also be used to allow a parallel meter connection of two EtherMeters, also.
Please refer to the SDA and/or SDAW Documentation for the most complete and up-to-date
application notes and wiring diagrams.

18
7 NEPTUNE PROTOCOL METER SUPPORT
The Neptune Protocol, as implemented within the E-Coder™, ProCoder™, Mach10, and ProRead
line of registers, is fully supported by the EtherMeter.
Important Notes:
(1) See the Meter Compatibility Matrix for meter register configuration details.
(2) Wire color-coding for Neptune-compatibles differs from that used in Sensus-compatibles and
K-Frame-compatibles.
Figure 7A. Neptune E-Coder™ – Register Diagram.
TERMINATION
DELIMITER
START
DELIMITER TOTALIZATION DATA
(DIGITS 1-6) TOTALIZATION DATA
(DIGITS 7-8)
NEPTUNE PROTOCOL:
7 DATA BITS, 1 START BIT, 1 STOP BIT, EVEN PARITY, ASCII ENCODING
SAMPLE READ. TOTALIZATION = 00000158
<STX> 2 0 0 S W <ETB> 0 0 0 0 0 1 <ETB> 1 2 3 4 5 6 7 8 9 0 <ETB> h <ETB> 5 8 @ <ETB> 7 2 <ETX>
Figure 7B. Neptune –Protocol Diagram Example (Total=”00000158”).
To connect a Neptune-Protocol Register to Meter Channel 1:
EtherMeter Terminal
Neptune-Compatible Wire Color
14
Black
15
Red
16
Green
To connect a Neptune-Protocol Register to Meter Channel 2:
EtherMeter Terminal
Neptune-Compatible Wire Color
17
Black
18
Red
19
Green