In order to track and minimize utility costs, a growing number of forward-thinking, modern factories have initiated efforts to monitor utility usage in realtime — including electricity, water, and natural gas. And such monitoring does not only occur at the utility-owned meters, but within the factory itself so that a breakdown of the utility costs … Read More →
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This article describes how to use an EtherMeter to connect a Tipping Bucket Rain Gauge to a SCADA System, yielding a realtime rainfall measurement system that communicates using Modbus, DF1, and EtherNet/IP. This rain measuring instrumentation was a component of the new SCADA System at the DesMoines & Mississippi Levee District (Alexandria, MO). The electronics were … Read More →
The EtherMeter contains an RS485 port for Modbus/RTU and DF1 communications in multi-drop applications. When using the RS485 port, the following EtherMeter terminals are used: 19 – RS485A (-) 20 – RS485B (+) 21 – Signal GND Reference (contains current-limiting resistor) In order to use RS485, attention should be given to the EtherMeter’s dip switch positions: Latest EtherMeter: … Read More →
In response to customer requests, pulse-based batching capability has been added to the EtherMeter. This new ability will be included on all future EtherMeter shipments dated 01 Feb 2010 and beyond. In most municipal water applications in which a pulse-based water meter is used, the pulse count is generally preferred to totalize without reset. However, … Read More →