Rockwell Automation 1408-EMxx PowerMonitor 1000 Unit - Manual (Page 65)

PowerMonitor 1000 Unit 65
Rockwell Automation Publication 1408-IN001E-EN-P - September 2013
Status Inputs
The power monitor has two self-powered (24V DC) status inputs. Two typical uses for status
inputs are to totalize external pulse meters and to synchronize the demand end of interval (EOI).
This function applies to catalog numbers 1408-EM1 (except demand EOI synch), 1408-EM2,
and 1408-EM3.
Operation
Each time status input 1 sees an off-to-on transition, the status input 1 scale factor is added to the
status input 1 count. The count continues to increase, rolling over to zero at a value of
9,999,999,999,999 (10
12 – 1). Status input 2 operates in the same fashion. Status input 2
counter operates whether or not the input is used for demand EOI synchronization.
Setup
The set-up parameters for pulse totalizing and scaling are in the Advanced Setup menu and are
summarized in this table.
Setup for demand EOI synchronization is described in the Demand Metering section.
Metering Parameters
• Status 1 Count x1,000,000 and x1
• Status 2 Count x1,000,000 and x1
Commands
The following commands may be used to preset or reset the status input counters:
• Set Status 1 Count
• Set Status 2 Count
Parameter Description Range Default User
Setting Model
TR1 TR2 EM1 EM2 EM3
Status Input 1
Input Scale
When a status input
sees an off to on
transition, the status
input count is
increased by the scale
factor.
1…
1,000,000
1
• • •
Status Input 2
Input Scale
1…
1,000,000
1
• • •