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OptoEMU Sensor 3V Energy Monitoring Unit Features Description The OptoEMU Sensor™ Energy Monitoring Unit monitors the electrical energy used in your facility and then delivers that data to online software applications or control systems. The OptoEMU Sensor gives you the detailed, real-time data you need to analyze energy consumption and reduce energy costs. Why Monitor Energy? Traditionally, the cost of 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. Using Energy Data in Other Systems Energy data from the OptoEMU Sensor can also be sent to other systems for use there. Sensor data can be incorporated in a PAC Control strategy, a PAC Display HMI, and control systems that communicate through Modbus/TCP or OPC. In addition, energy data can be sent to common SQL databases such as MySQL and SQL Server. Using Sensor data in these other systems, you can manage energy usage and costs in detail. For more information on using energy data in other systems, see form 1958, the OptoEMU Sensor Communication Guide. 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 reduce energy costs by managing energy in the same way as other business costs such as people, assets, and inventory. Energy management represents significant opportunities to improve the bottom line. Connecting to Electrical Devices Reducing energy costs does not require complex or expensive technology; it requires basic information. That information starts with gathering detailed, real-time data through the OptoEMU Sensor. OptoEMU Sensor 3V Energy Monitoring Unit Monitor real-time energy usage from utility meters, electrical panels, subpanels, and equipment View detailed real-time and historical energy usage data online through your chosen software service Send data to a SNAP PAC System, systems using Modbus/TCP or OPC, or SQL databases Communicate over standard 10/100 Mbps Ethernet or wireless LAN (802.11a, b, or g), or both at once Part Numbers Viewing Energy Data Energy monitoring unit for electrical OPTOEMU-SNR-3V panels, machines, and devices, Wired+Wireless™ CBL-PWR-120VUS Temporary power cable accessory for initial IP address configuration, North America Temporary power cable accessory for initial IP address configuration, Europe Auxiliary box for OptoEMU Sensor, with stepdown transformer and fusible disconnect 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 © 2010–2012 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. DATA SHEET The OptoEMU Sensor sends energy data directly to the service you choose, and you can view the data from any authorized computer or mobile device in accordance with the service you purchase. Real-time and historical energy data gathered by the OptoEMU Sensor is viewed online through a secure software service. You choose the service that’s best for your business. The OptoEMU Sensor can connect to a variety of metering devices that emit pulses. It can connect to Modbus devices over serial or Ethernet. And it can also connect directly to electrical circuits using current transformers (CTs) with a 0.333 VAC secondary.

OptoEMU Sensor 3V Energy Monitoring Unit DATA SHEET OptoEMU Sensor 3V Energy Monitoring Unit Connecting to pulse, serial, and Ethernet inputs Connecting directly to a panel The Sensor can monitor energy devices in all ways, simultaneously: • Pulse—The Sensor can monitor up to four electrical devices that emit a pulse output, such as a utility meter or submeter. • Ethernet—The Sensor monitors Modbus/TCP energy devices that connect over an Ethernet network. • Serial—The Sensor monitors Modbus energy devices that connect over a serial network. The serial interface on the unit is software...

OptoEMU Sensor 3V Energy Monitoring Unit A temporary power cable accessory is available, if needed, for assigning the IP address before installation. (See “Part Numbers” on page 1.) Data Storage The OptoEMU Sensor can store data internally. If communication with the software service is lost, the unit stores data for delivery when communication is restored. The OptoEMU Sensor communicates with these services over a standard 10/100 Mbps Ethernet network or over an 802.11a, b, or g wireless LAN (local area network). With wired Ethernet network interfaces plus an independent wireless interface,...

OptoEMU Sensor 3V Energy Monitoring Unit Wiring for Pulsed Inputs Pulsing Meter with KY pulsing output Use with either two-wire KY (Form A) or three-wire KYZ (Form C) pulsing devices. Junction box with fuses DATA SHEET Contact your utility company if connections are not immediately apparent. Follow wiring instructions in the OptoEMU Sensor User’s Guide, form #1932. Junction box with fuses Pulsing Meter with KYZ pulsing output NOTE: If this equipment is used in a manner not specified by Opto 22, the protection provided by the equipment may be impaired. OptoEMU Sensor 3V Energy Monitoring...

OptoEMU Sensor 3V Energy Monitoring Unit Wiring for Serial Ports RS-232 and RS-485 Pinouts Signal Direction Signal Direction RS-485 2-Wire Serial device Middle of link Serial device End of link RS-485 4-Wire Serial device Middle of link RX – RX + COM TX/RX – TX/RX + Serial device End of link TX – TX + COM RX – RX + OptoEMU Sensor 3V Energy Monitoring Unit DATA SHEET 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...