The EtherMeter’s Most Commonly-Used Data Registers.

In a nutshell, the EtherMeter^® is an instrument that transforms your water (or gas) meter into an Ethernet-capable Modbus or Allen-Bradley device.

If the automation system at your facility is based on Allen-Bradley controls, then you will be pleased to know that the EtherMeter emulates a “MicroLogix” on the network. If your automation system is based on Modbus, then you will be glad to know that the EtherMeter serves as a “Modbus/TCP” device on the network.

The Master (aka the “Client”) computer or PLC will be set up to poll the EtherMeter for metering data. Upon receipt of a poll request, the EtherMeter responds with the present snapshot of the meter’s total consumption and rate-of-flow.

Modbus functionality is detailed in Chapter 14, and Allen-Bradley functionality is detailed in Chapter 15 of the User Manual. However, the register mappings for both protocol sets are illustrated below:

Most polling masters (aka “clients”) timestamp each data point and store in non-volatile memory or hard drive. And example is illustrated below:

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Date , Time , Meter_ID , Network_Fault , Meter_Fault , Meter_Reading , Units , Rate_of_Flow
2017/08/27 , 11:30 , 0001 , 0 , 0 , 169.000 , GAL , 0.000
2017/08/27 , 11:30 , 0002 , 0 , 0 , 99999986.000 , GAL , 0.000
2017/08/27 , 11:30 , 0003 , 0 , 0 , 520.000 , GAL , 0.000
2017/08/27 , 11:30 , 0004 , 0 , 0 , 258923.000 , GAL , 0.000
2017/08/27 , 11:30 , 0005 , 0 , 0 , 35011.000 , GAL , 0.000
2017/08/27 , 11:30 , 0006 , 0 , 0 , 12982175.000 , GAL , 0.000
2017/08/27 , 11:40 , 0001 , 0 , 0 , 169.000 , GAL , 0.000
2017/08/27 , 11:40 , 0002 , 0 , 0 , 99999986.000 , GAL , 0.000
2017/08/27 , 11:40 , 0003 , 0 , 0 , 520.000 , GAL , 0.000
2017/08/27 , 11:40 , 0004 , 0 , 0 , 258923.000 , GAL , 0.000
2017/08/27 , 11:40 , 0005 , 0 , 0 , 35011.000 , GAL , 0.000
2017/08/27 , 11:40 , 0006 , 0 , 0 , 12982175.000 , GAL , 0.000
2017/08/27 , 11:50 , 0001 , 0 , 0 , 169.000 , GAL , 0.000
2017/08/27 , 11:50 , 0002 , 0 , 0 , 99999986.000 , GAL , 0.000
2017/08/27 , 11:50 , 0003 , 0 , 0 , 520.000 , GAL , 0.000
2017/08/27 , 11:50 , 0004 , 0 , 0 , 258923.000 , GAL , 0.000
2017/08/27 , 11:50 , 0005 , 0 , 0 , 35011.000 , GAL , 0.000
2017/08/27 , 11:50 , 0006 , 0 , 0 , 12982175.000 , GAL , 0.000
2017/08/27 , 12:00 , 0001 , 0 , 0 , 169.000 , GAL , 0.000
2017/08/27 , 12:00 , 0002 , 0 , 0 , 99999986.000 , GAL , 0.000
2017/08/27 , 12:00 , 0003 , 0 , 0 , 520.000 , GAL , 0.000
2017/08/27 , 12:00 , 0004 , 0 , 0 , 258923.000 , GAL , 0.000
2017/08/27 , 12:00 , 0005 , 0 , 0 , 35011.000 , GAL , 0.000
2017/08/27 , 12:00 , 0006 , 0 , 0 , 12982175.000 , GAL , 0.000
2017/08/27 , 12:10 , 0001 , 0 , 0 , 169.000 , GAL , 0.000
2017/08/27 , 12:10 , 0002 , 0 , 0 , 99999986.000 , GAL , 0.000
2017/08/27 , 12:10 , 0003 , 0 , 0 , 520.000 , GAL , 0.000
2017/08/27 , 12:10 , 0004 , 0 , 0 , 258923.000 , GAL , 0.000
2017/08/27 , 12:10 , 0005 , 0 , 0 , 35011.000 , GAL , 0.000
2017/08/27 , 12:10 , 0006 , 0 , 0 , 12982175.000 , GAL , 0.000

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Many polling masters also offer visual realtime displays and historical trending capability. Examples of historical trending charts are illustrated below from a water utility pump station. The station features two flow meters: an influent meter that measures the fill of a ground tank, and a a discharge meter that measures the flow from the pumps:

Note that the units above are displayed in gallons. However, if the target meters feature alternate units (e.g. liters or m³), then the EtherMeter will provide matching units.

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Are you interested in how SCADAmetrics’ EtherMeter technology can lend a competitive advantage to your automation system’s metering operations? Give us a call! We’ll be glad to discuss the details!