OptoEMU Sensor DR
(Demand Response)
PAGE
1
DATA SHEET
Form 1990-150326
OptoEMU Sensor DR (Demand Response)
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • sales@opto22.com • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • support@opto22.com
© 2012–2014 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
Features
Monitor real-time energy usage from utility meters
and equipment
See and analyze energy data online
Shed loads on predefined usage thresholds
Exchange data with a SNAP PAC System, OPC or
Modbus/TCP systems, and SQL databases
Communicate over standard 10/100 Mbps Ethernet or
wireless LAN (802.11a, b, or g) or both
UL listed in U.S. and Canada
Description
The OptoEMU Sensor™ Energy Monitoring Unit with demand
response (DR) monitors the electrical energy used in your
facility and then signals electrical equipment to turn on or off
in response to limits you define.
To reduce peak energy use that triggers demand charges,
electrical equipment loads can also be shed on predefined
usage thresholds.
The OptoEMU Sensor DR makes it easy to reduce your energy
costs by managing energy consumption, taking advantage of
demand response programs from utility providers, and
gaining control over your energy pricing.
Why Monitor Energy?
Traditionally, energy has been considered an overhead cost.
Utility bills show few details about when and how electricity
was used, and they arrive long after the energy was
consumed.
However, new energy pricing structures are changing
traditional ways of looking at energy costs. Increasingly,
commercial and industrial businesses are finding that they can
significantly improve the bottom line by managing energy in
the same way as other business costs such as people, assets,
and inventory.
In addition, new Demand Response (DR) programs from
energy providers offer opportunities to turn what used to be
an overhead cost into a source of revenue. The OptoEMU
Sensor DR helps you take advantage of these opportunities.
Gathering and Viewing Energy Data
The OptoEMU Sensor DR’s digital inputs gather data from up
to two metering devices that emit pulses (such as a utility
meter or submeter). The Sensor DR can also monitor up to 64
data inputs from Modbus devices (over serial and Ethernet).
You can view this real-time and historical energy data through
a secure online software service such as Pulse Energy or
eSight. You choose the service thats best for your business,
and OptoEMU Sensor DR sends energy data directly to that
service. Services usually provide graphs, energy usage
comparisons, and other tools to analyze energy use in detail.
OptoEMU Sensors are also compatible with groov mobile
operator interfaces you build yourself and use on any
smartphone, tablet, or computer. For more information, visit
groov.com.
Managing Energy Use
The OptoEMU Sensor DR includes four signal relay outputs
that can be used to respond to usage limits you define. These
outputs can signal equipment such as HVAC fans and chillers
to turn on or off, or signal existing energy or building
management systems to perform load shedding.
Each Form C output can be wired for normally open or
normally closed.
Part Numbers
Part Description
OPTOEMU-SNR-DR1 Energy monitoring unit with Demand
Response capability (Wired+Wireless)
OPTOEMU-SNR-DR2 Energy monitoring unit with Demand
Response capability (wired Ethernet)
OptoEMU
Sensor DR
OptoEMU Sensor DR (Demand Response)
OptoEMU Sensor DR (Demand Response)
PAGE
2
DATA SHEET
Form 1990-150326
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • sales@opto22.com • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • support@opto22.com
© 2012–2014 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
Configuration
The Sensor includes an easy-to-use utility program for
assigning an IP address for communication on your network,
configuring inputs and an online data service, and entering
the appropriate responses for shedding load.
Communicating with Other Systems
The OptoEMU Sensor DR can also communicate with other
systems to coordinate energy management. Sensor data can
be incorporated in a PAC Control strategy, a PAC Display HMI,
and control systems that communicate through Modbus/TCP
or OPC.
Communication
The OptoEMU Sensor DR uses standard networks and
protocols to communicate with online services and computer
networks. Two DR models are available:
OPTOEMU-SNR-DR2 communicates over a standard 10/
100 Mbps wired Ethernet network.
OPTOEMU-SNR-DR1 communicates over a 10/100 Mbps
wired Ethernet network or over an 802.11a, b, or g wireless
LAN (local area network). It can also communicate over
both, simultaneously. Security on the wireless LAN
includes 802.11i WPA2/AES, currently considered the best
wireless security, plus the older WPA security standard for
backwards compatibility.
With the options of two wired Ethernet network interfaces or
two wired plus an independent wireless interface, you have
the flexibility to monitor devices in hard-to-reach areas and to
set up networking suited to your business.
Data Storage
The OptoEMU Sensor DR can store data internally. If
communication with the software service is lost, the unit
stores data for delivery when communication is restored.
OptoEMU Sensor DR
OptoEMU Sensor DR (Demand Response)
OptoEMU Sensor DR (Demand Response) DATA SHEET
Form 1990-150326
PAGE
3
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • sales@opto22.com • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • support@opto22.com
© 2012–2014 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
Wiring for Pulsed Inputs
Wiring for Signal Relay Outputs (Form C)
Use with either two-wire KY
(Form A) or three-wire KYZ (Form
C) pulsing devices.
Pin 7 (labeled NC) is not used.
Contact your utility company if
connections are not immediately
apparent.
NOTE: If this equipment is used in a
manner not specified by Opto 22,
the protection provided by the
equipment may be impaired.
Pulsing Meter with
KY pulsing output
Pulsing Meter with
KYZ pulsing output
Junction box with fuses
Junction box with fuses
OptoEMU Sensor DR
NC NO
CNC NO
CNC NO
CNC NO
C
CH0CH1
CH2
CH3
Note: You must provide fusing.
Current rating: 100 mA switching (max.)
@ 250 VAC/VDC (max.)
Wire size: 24–14 AWG
NOTE: Transient protection must be used on inductive loads.
OptoEMU Sensor DR (Demand Response)
OptoEMU Sensor DR (Demand Response)
PAGE
4
DATA SHEET
Form 1990-150326
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • sales@opto22.com • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • support@opto22.com
© 2012–2014 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
Wiring for Serial Ports
RS-232 and RS-485 Pinouts
RS-232 Signal
Direction RS-485 Signal
Direction
DCD In --
DTR Out --
CTS In RX- (4 wire) In
RTS Out RX+ (4 wire) In
COM COM
RX In TX/RX– In/Out
TX Out TX/RX+ In/Out
7
6
5
4
3
2
1
COM
TX/RX –
TX/RX +
COM
TX/RX –
TX/RX +
COM
TX/RX –
TX/RX +
RX –
RX +
COM
TX/RX
TX/RX +
TX –
TX +
COM
RX –
RX +
TX –
TX +
COM
RX –
RX +
Earth GND
Earth GND
RS-485 2-Wire
RS-485 4-Wire
Serial device
Middle of link
Serial device
End of link
Serial device
Middle of link
Serial device
End of link
7
6
5
4
3
2
1
OptoEMU Sensor DR (Demand Response)
OptoEMU Sensor DR (Demand Response) DATA SHEET
Form 1990-150326
PAGE
5
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • sales@opto22.com • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • support@opto22.com
© 2012–2014 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
Specifications: OptoEMU Sensor DR
Overall Unit Specifications
OPTOEMU-SNR-DR1 OPTOEMU-SNR-DR2
Power Requirements 100–240 VAC, 47–63 Hz, 0.4 A maximum, 8 W 100–240 VAC, 47–63 Hz, 0.4 A maximum, 8 W
Dimensions Overall 2.45" w x 8.08" h x 4.76" d (6.23 cm x
20.53 cm x 12.09 cm) Overall 2.45" w x 8.08" h x 4.76" d (6.23 cm x
20.53 cm x 12.09 cm)
Enclosure Sturdy metal case Sturdy metal case
Removable storage MicroSD card slot (for future use) MicroSD card slot (for future use)
Backup battery Rechargeable (recharges whenever the unit has
power), 3-year power-off data retention Rechargeable (recharges whenever the unit has
power), 3-year power-off data retention
Ethernet Communication
(wired)
T wo independent 10/100 Mbps Ethernet network
interfaces (RJ-45 connectors), each with a sepa-
rate IP address (separate subnets).
Two independent 10/100 Mbps Ethernet net-
work interfaces (RJ-45 connectors), each with a
separate IP address (separate subnets).
Ethernet Comm (wireless)
Wireless LAN interface with separate IP address
(separate subnet).
Security:
AES - Compatible with WP A2 Personal (802.1 1i);
TKIP - Compatible with WPA Personal
Frequency 802.11a:
5.180–5.240 GHz, 5.745–5.825 GHz
Frequency 802.11b/g:
2.412–2.472 GHz, 2.484 GHz
Transmit Power:
15 dBm maximum
Antenna Connector:
Reverse polarity SMA (RP-SMA or RSMA)
Roaming:
Supported within an SSID (Service Set Identifier)
only
No wireless capability
Serial Communication
One serial port, software configurable for RS-
232 (TX, RX, COM, DTR, DCD, RTS, CTS) or
RS-485 (2-wire, 4-wire, optional termination,
optional biasing).
One serial port, software configurable for RS-
232 (TX, RX, COM, DTR, DCD, RTS, CTS) or
RS-485 (2-wire, 4-wire, optional termination,
optional biasing).
Indicators
Status of unit
Wireless: WLAN activity
Serial: Receiving, Transmitting (future use)
Ethernet interfaces (2): Link, Activity
Pulse inputs: On/Off status
Mechanical relay outputs: On/Off status
Status of unit
Serial: Receiving, Transmitting (future use)
Ethernet interfaces (2): Link, Activity
Pulse inputs: On/Off status
Mechanical relay outputs: On/Off status
Other features Real-time clock Real-time clock
Operating Temperature 0 to 60 °C (32 to 140° F) 0 to 60 °C (32 to 140° F)
Storage Temperature -25 to 85 °C (-13 to 185° F) -25 to 85 °C (-13 to 185° F)
Humidity 0% to 95% relative humidity, non-condensing 0% to 95% relative humidity, non-condensing
Agency Approvals UL, cUL, CE, RoHS, DFARS
Wireless: U.S., FCC Part 15 Subpart C; Canada,
IC RSS-210
UL, cUL, CE, RoHS, DFARS
Warranty 30 months 30 months
OptoEMU Sensor DR (Demand Response)
OptoEMU Sensor DR (Demand Response)
PAGE
6
DATA SHEET
Form 1990-150326
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • sales@opto22.com • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • support@opto22.com
© 2012–2014 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
Specifications (continued)
Dry Contact Pulse Inputs
OptoEMU Sensor DR supplies 15 volts to each external dry contact switch and senses switch closure.
Signal Relay Outputs
Open Circuit Voltage (Switch Open) 15 VDC typical (supplied by OptoEMU Sensor DR)
Short Circuit Current (Switch Closed) 7 milliamps nominal
Minimum Off Resistance >20 K ohms
Maximum Allowable ON Resistance
(Wire + Contact Resistance) 500 ohms
Turn-on Time 5 msec
Turn-off Time 25 msec
Input-to-output Isolation 1500 VAC/VDC
Status indicators 1 LED per channel
Contact Configuration SPDT relay (with NO and NC contacts)
Line Voltage - Range 0–240 VAC or 0–30 VDC
Current Rating 100 mA switching @ 0–240 VAC or 0–100 VDC
Surge Current 600 mA
Minimum Load 0.1 VDC, 5 mA
Contact Resistance 100 milliohms
Peak Blocking Voltage 250 VAC/VDC
Channel-to-channel isolation 300 VAC (1500 V transient)
Turn-on Time 6 milliseconds
Turn-off Time 6 milliseconds
Temperature 0 to 70 °C, operating
-30 to 85 °C, storage
Mechanical Life 5 x 106 operations
Operational Life 1 x 103 operations
Status indicators 1 LED per channel
OptoEMU Sensor DR (Demand Response)
OptoEMU Sensor DR (Demand Response) DATA SHEET
Form 1990-150326
PAGE
7
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • sales@opto22.com • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • support@opto22.com
© 2012–2014 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
Dimensional Diagram—OPTOEMU-SNR-DR1
Faceplate,
OPTOEMU-SNR-DR1
Faceplate,
OPTOEMU-SNR-DR2
Dimensions are identical for
the OPTOEMU-SNR-DR2
except it has no antenna.
More About Opto 22
www.opto22.com • Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • Form 1335-131203
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • sales@opto22.com • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • support@opto22.com
© 2014 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
Products
Opto 22 develops and manufactures reliable, flexible, easy-to-use
hardware and software products for industrial automation,
energy management, remote monitoring, and data acquisition
applications.
groov
groov
puts your system on your mobile device. With zero
programming, you can build mobile operator interfaces to
monitor and control systems from Allen-Bradley, Siemens,
Schneider Electric, Modicon, and many more. Web-based
groov
puts mobile-ready gadgets at your fingertips. Tag them from your
existing tag database, and they automatically scale for use on any
device with a modern web browser. See
groov.com
for more
information and your free trial.
SNAP PAC System
Designed to simplify the typically complex
process of selecting and applying an
automation system, the SNAP PAC
System consists of four integrated
components:
SNAP PAC controllers
PAC Project Software Suite
SNAP PAC brains
SNAP I/O
SNAP PAC Controllers
Programmable automation controllers
(PACs) are multifunctional, modular controllers based on open
standards.
Opto 22 has been manufacturing PACs for over two decades. The
standalone SNAP PAC S-series, the rack-mounted SNAP PAC R-
series, and the software-based SoftPAC™ all handle a wide range
of digital, analog, and serial functions for data collection, remote
monitoring, process control, and discrete and hybrid
manufacturing.
SNAP PACs are based on open Ethernet and Internet Protocol (IP)
standards, so you can build or extend a system easily, without the
expense and limitations of proprietary networks and protocols.
Wired+Wireless™ models are also available.
PAC Project Software Suite
Opto 22’s PAC Project Software Suite provides full-featured, cost-
effective control programming, HMI (human machine interface)
development and runtime, OPC server, and database connectivity
software for your SNAP PAC System.
Control programming includes both easy-to-learn flowcharts and
optional scripting. Commands are in plain English; variables and I/
O point names are fully descriptive.
PAC Project Basic offers control and HMI tools and is free for
download on our website,
www.opto22.com
. PAC Project
Professional, available for separate purchase, adds one SoftPAC,
OptoOPCServer, OptoDataLink, options for controller redundancy
or segmented networking, and support for legacy Opto 22 serial
mistic
I/O units.
SNAP PAC Brains
While SNAP PAC controllers provide central control and data
distribution, SNAP PAC brains provide distributed intelligence for
I/O processing and communications. Brains offer analog, digital,
and serial functions, including thermocouple linearization; PID
loop control; and optional high-speed digital counting (up to 20
kHz), quadrature counting, TPO, and pulse generation and
measurement.
SNAP I/O
I/O provides the local connection to sensors and equipment.
Opto 22 SNAP I/O offers 1 to 32 points of reliable I/O per module,
depending on the type of module and your
needs. Analog, digital, and serial modules are
all mixed on the same mounting rack and
controlled by the same processor (SNAP PAC
brain or rack-mounted controller).
Quality
Founded in 1974, Opto 22 has established a
worldwide reputation for high-quality products.
All are made in the U.S.A. at our manufacturing
facility in Temecula, California. Because we
test each product twice before it leaves our
factory, rather than only testing a sample
of each batch, we can guarantee most
solid-state relays and optically isolated I/O
modules for life.
Free Product Support
Opto 22’s California-based Product Support Group offers free,
comprehensive technical support for Opto 22 products. Our staff
of support engineers represents decades of training and
experience. Support is available in English and Spanish by phone
or email, Monday–Friday, 7 a.m. to 5 p.m. PST.
Additional support is always available on our website: how-to
videos, OptoKnowledgeBase, self-training guide, troubleshooting
and users guides, and OptoForums.
In addition, hands-on training is available for free at our Temecula,
California headquarters, and you can
register online
.
Purchasing Opto 22 Products
Opto 22 products are sold directly and through a worldwide
network of distributors, partners, and system integrators. For
more information, contact Opto 22 headquarters at 800-321-
6786 or 951-695-3000, or visit our website at
www.opto22.com
.
www.opto22.com