Publication 1404-UM001D-EN-E - October 2004
I/O Operations
6-5
Status Input Operations
The Powermonitor 3000
’
s two self-powered status inputs provide a
number of flexible configuration options that help customize the
Powermonitor 3000 operation to meet the requirements of your
specific application.
Counters
You may use the Powermonitor 3000 to monitor discrete events such
as circuit breaker status or kWh pulses from a legacy electrical energy,
steam, gas or other type of meter. Each status input has associated
with it an independent counter, which increments with every
false-to-true transition of its input. The counter rolls over to 0 when it
reaches its maximum value of 29,999. The counter value may be read
using the Display Module or communications to provide a value
proportional to the accumulated value of the meter connected to the
status input. You may select the input counter values as Trend Log
parameters.
You may clear either or both status input counters using the Display
Module or by writing the appropriate command to the Advanced
Device Configuration table.
Demand Period Synchronization
You may synchronize the Powermonitor 3000 demand period with a
utility end-of-interval (EOI) pulse by wiring a dry contact controlled
by the EOI pulse into Status Input 2 and setting the appropriate
demand configuration parameters. Refer to Chapter 3 for more
information about demand.
Setpoint Inputs
You may use one or both status inputs to activate setpoint control.
Use an equal or not equal setpoint evaluation condition with status
inputs.
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Страница 304: ...Publication 1404 UM001D EN E October 2004 D 6 Technical Specifications ...
Страница 324: ...Publication 1404 UM001D EN E October 2004 F 18 Powermonitor 3000 EtherNet IP Device Profile ...
Страница 340: ...Publication 1404 UM001D EN E October 2004 G 16 Powermonitor 3000 ControlNet Device Profile ...
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