Emerson OpenComms-485 manual Technical Support/Service

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MONITORING

OpenComms - 485 Modbus Reference Guide

THE COMPANY BEHIND

THE PRODUCTS

With over a million installations around the globe, Liebert is the world leader in computer protection systems. Since its founding in 1965, Liebert has developed a complete range of support and protection systems for sensitive electronics.

While every precaution has been taken to ensure the accuracy and completeness of this literature, Liebert Corporation assumes no responsibility and disclaims all liability for damages resulting from use of this information or for any errors or omissions.

© 2006 Liebert Corporation

All rights reserved throughout the world. Specifications subject to change without notice.

Technical Support/Service

Web Site

www.liebert.com

Monitoring

800-222-5877 monitoring@liebert.com Outside the US: 614-841-6755

Locations

United States

1050 Dearborn Drive

P.O. Box 29186

Columbus, Ohio 43229

Italy

Via Leonardo Da Vinci 8

Zona Industriale Tognana

35028 Piove Di Sacco (PD)

+39 049 9719 111

Fax +39 049 5841 257

Asia

23F, Allied Kajima Bldg.

138 Gloucester Road

Wanchai

Hong Kong

852.2.572.2201 Phone

852.2.831.0114 Fax

Liebert and the Liebert logo are registered trademarks of Liebert Corporation. All names referred to are trademarks or registered trademarks of their respective owners.

525502R5 REV.5

Emerson Network Power and the Emerson Network Power logo are trademarks and service marks of Emerson Electric Co. (c)2006 Emerson Electric Co.

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Contents Monitoring Revision Level Updates Table of Contents Modbus Communications Connectivity to OpenComms-485 using ModbusModbus Packet Format RTU Framing Status Coil Scale Reg Liebert NfinityInput Holding Register Scale REV 7/6/2007 Liebert Monitoring Group -Development Data Point Status Coil # of Reg Scale Liebert NxREV 7/6/2007 Liebert Monitoring Group -Development Data Point Input Register Holding Register # of Reg Scale Data Point Register Coil # of Reg Scale 100 VAR Data Point Status Coil # of Reg Liebert PowerSure InteractiveInput Holding Data Point Register # of Reg Scale REV 7/6/2007 Liebert Monitoring Group -Development Supported Modbus Points Data Point Input Register Holding Register # of Reg Scale REV 7/6/2007 Liebert Monitoring Group -Development Status Coil # of Reg Scale Liebert GXT2REV 7/6/2007 Liebert Monitoring Group -Development Input Register Holding Register # of Reg Scale REV 7/6/2007 Liebert Monitoring Group -Development Liebert HiNet Input Holding Register# of Reg Scale Data Point Liebert UPS SeriesInput Holding Scale Register REV 7/6/2007 Liebert Monitoring Group -Development Liebert UPS Series Battery Charger Fail 10234 REV 7/6/2007 Liebert Monitoring Group -Development Data points Mapped to Input Status and Coils Liebert DSMain FAN Overload Sensor a Failure Data Points Mapped to Input and Holding Registers HourMinute Sleep Interval 30042 40042 MSBHr Events/Alarm Bit0 =. Reset state Technical Support/Service