Elster Metering Systems Power Master Unit Software -

Without a PMU, a utility with 50,000 meters might need to poll each meter individually over a wide-area network (e.g., cellular), incurring data plan costs for 50,000 devices. With PMUs (e.g., 50 PMUs managing 1,000 meters each), the utility only pays for 50 cellular connections. The PMU aggregates data locally, slashing communication costs by up to 95%.

Why invest in this specific software solution? The return on investment manifests in three key areas:

If you have just installed an Elster Alpha meter, here is your standard workflow using the PMU software:

When assessing the Elster Metering Systems Power Master Unit Software against alternatives (e.g., Siemens Power Manager, Schneider Electric ION Enterprise), several differentiators emerge:

The trade-off is a learning curve. The interface is utilitarian (function-over-form) and may require dedicated training compared to more modern, cloud-native platforms.

The Elster Metering Systems Power Master Unit Software is far more than a driver for a hardware device. It is a mission-critical energy information system. For facilities managers tired of guessing their peak demand, utility accountants seeking to reconcile billing errors, and engineers commissioning microgrids, this software provides the verifiable, high-resolution truth.

By mastering the configuration, leveraging real-time monitoring, and integrating historical analysis, organizations can reduce utility costs by 5-15%, improve power reliability, and demonstrate verifiable sustainability compliance. While newer cloud interfaces may offer prettier charts, the Elster PMU software offers something more valuable: unshakeable reliability and depth of data that has been trusted by utilities and industry leaders for decades.

Whether you are troubleshooting a communication error, setting up a complex time-of-use tariff, or simply looking for a definitive guide, remember that the software is the soul of the Power Master Unit. Without it, you have only pulses. With it, you have power.


For technical support, firmware updates, or licensing inquiries regarding the Elster Metering Systems Power Master Unit Software, users should contact Honeywell’s Energy & Sustainability Solutions division or an authorized Elster system integrator.

Power Master Unit (PMU) software is a Windows-based graphical utility used for programming, configuring, and reading data from Elster Metering Systems' range of programmable single and polyphase meters. Key Documentation & Features Elster Metering Systems Power Master Unit Software

Documentation for this software is typically found within specific meter manuals or standalone software guides: A1700 Meter Programming

: Comprehensive guides for using PMU to configure schemes for A1700 meters are available via Scribd's A1700 User Manual Chapter 6 A1140 Meter Support

: A complete manual for the A1140 meter includes a dedicated chapter (Chapter 3) on Power Master Unit software support. General Software Guide

: A high-level overview of the software's capabilities, including tariff scheme creation and load profile displays, can be found in the Power Master Unit Software Guide Core Functionality

The software provides a user-friendly interface divided into three main management windows: Metering AS Scheme Manager : Used for creating and editing graphical tariff schemes. Meter Manager

: Organizes meter information in a hierarchical structure similar to Windows Explorer. Meter List

: Groups schemes and meter info together for transfer to the physical unit. Versions and Downloads

Different meter models may require specific software versions: : Commonly used for : Specifically designed for Legacy Support

: PMU can convert older Master Unit files for compatibility with newer systems. Metering AS connection settings for specific communication protocols like used with this software? Elster Power Master Unit Software Guide | PDF - Scribd Without a PMU, a utility with 50,000 meters

The Elster Power Master Unit (PMU) software is a specialized configuration and data management tool used for Elster Metering Systems' range of programmable single and polyphase meters

. It provides a user-friendly Windows-based graphical interface for both local and remote meter programming and data reading. Core Functionality

The software is designed to manage complex metering tasks through three primary management windows: Scheme Manager

: Used for creating and organizing graphical tariff schemes and meter configurations hierarchically. Meter Manager

: Allows for the organization and storage of specific meter information and identification details. Meter List

: Serves as the staging area where schemes and meter data are combined before being transferred to physical meters. Key Features Programming & Reading

: Enables full configuration of meter parameters and retrieval of instantaneous values and historical data. Tariff Management

: Supports the creation of complex Seasonal Time Of Day (STOD) tariffs, including up to 32 TOU registers and 64 exclusion dates. Data Visualization

: Includes a load profile display facility to analyze stored energy consumption data over time. The trade-off is a learning curve

: Provides user password protection to prevent unauthorized access or changes to meter settings. Backward Compatibility

: Includes tools to convert older Master Unit files for use with current systems. Compatibility & Connectivity Supported Meters

: Primarily used for Elster A1140, A1700 (Vision), and AS230 series meters. Communication Protocols : Supports multiple connection methods including: Direct/Local : Optical FLAG (IEC 62056-21) and RS232. : PSTN or GSM modems, PAKNET, and RS485 networks. Hardware Support : Interfaces with Honeywell Elster hardware and Elster Metering Systems via standard PC hardware. Metering AS Software Versions

Different meter models may require specific software versions: : Commonly used for A1140 and A1700 meters. : Specifically targeted for AS230 meters. Alternative Tools


The foundational layer of the Elster Metering Systems Power Master Unit Software is the configuration tool. Typically deployed via a PC-based application, this software allows engineers to:

While on-premise Elster Metering Systems Power Master Unit Software remains the gold standard for control and security, the industry is shifting toward hybrid models. Honeywell (Elster’s parent) has begun introducing cloud-analytics overlays that can subscribe to the on-premise database.

In this model, the PMU software remains the local master—polling meters, storing raw data, and providing real-time alarms. Meanwhile, a cloud AI engine pulls anonymized load profiles to predict failures, optimize peak shaving, and benchmark efficiency.

For users of the legacy PMU software, this means their existing investment is future-proof. They can retain the reliability of the local master while layering on advanced analytics as their budget allows.