Modbus Poll is a full-featured Modbus® master program that can be used to monitor, configure, and test WattNode® Modbus meters. This article provides some pointers on using Modbus Poll successfully with the WattNode. Saving Register Blocks Before anything else, it is important to learn to save register block configurations, so that you do not have […]
Why Are Some Settings Locked on Revenue Meters? On WattNode® Revenue meters (BACnet®, Modbus®, and LonWorks®), the meter prevents writes to all configuration settings that could affect the reported results. This helps ensure the revenue grade accuracy when the meter is installed correctly and is in a physically secure location. If the meter allowed configuration […]
Measuring Parallel Conductors Overview Parallel conductors are commonly used for 400 amp and larger circuits (feeders) and utility services. Two or more sets of phase conductors are installed in separate conduits and electrically joined at both ends to form the equivalent a single conductor with a larger ampacity rating. Multiple parallel conductors dissipate heat better […]
Paralleling Current Transformers This page discusses the issues of using current transformers (CTs) in parallel. This is useful for the following: Circuits with multiple conductors (common on high current circuits): Measuring Parallel Conductors. To add the power and energy readings of multiple branch circuits and measure them with one WattNode. When paralleling CTs, the effective […]
WattNode Pulse – Model Selector The pulse meter Model and Option Selector helps you choose the correct model and options, especially for complex options and combinations of options. See the instructions near the bottom of this page.