Rockwell Automation 1408-EMxx PowerMonitor 1000 Unit - Manual (Page 32)

32 Rockwell Automation Publication 1408-UM001D-EN-P - September 2013
Chapter 2 PowerMonitor 1000 Unit Features
Energy results (kWh, kVARh, and kVAh) roll over to 0 at a value of
9,999,999,999,999 or 10
12
-1.
Setup
Only basic analog input setup is required for energy metering.
Results
Energy metering results may be viewed using the following methods:
• Web interface
• LCD screen
• Communication
Energy results are not available via the HyperTerminal communication tool.
Commands
The following commands are supported by the power monitor:
• Set GWh/kWh register
• Set GVARh/kVARh register
• Set GVAh/kVAh register
• Clear all energy registers
Related Functions
• KYZ output
• Energy log
• Configuration lock
Demand Metering Demand is an electric power term that expresses the average energy usage over a
period of time. The power monitor may be configured to measure demand using
a fixed demand period or a sliding window. The demand period may be timed
internally, synchronized to an external demand end-of-interval contact connected
to the S2 status input, or synchronized using communication.
This function applies to catalog numbers 1408-EM2 and 1408-EM3.