Rockwell Automation 1408-EMxx PowerMonitor 1000 Unit - Manual (Page 13)

Rockwell Automation Publication 1408-UM001D-EN-P - September 2013 13
PowerMonitor 1000 Overview Chapter 1
Troubleshooting mode lets you enter a password-protected command that
promotes your PowerMonitor unit to an EM3 model. This makes all measured
parameters available for troubleshooting purposes.
Communication Overview All PowerMonitor 1000 units come standard with an RS-485 serial
communication port. Models with catalog numbers ending in -ENT are
equipped with an Ethernet 10BaseT communication port. This section covers
serial and Ethernet communication, the available protocols, and what protocols
to use for your application.
What Can I Do Using Communication Networks?
When you use communication networks with the power monitor you can do the
following things.
• Configure analog input parameters such as PT/CT ratios
• Configure communication parameters such as IP address
• Read real-time power and energy data
• Read energy logs
Serial Communication
The RS-485 serial communication port allows serial communication to your
power monitor. This port can be configured to communicate using the protocols
listed the this table.
Min / max log • • •
Load factor log • •
Time of use logs • • •
Status log • • • • •
Measured Parameters TR1 TR2 EM1 EM2 EM3
Protocol Applications
DF1 Half-duplex Slave The DF1 Half-duplex Slave protocol may be used for point-to-point or multi-drop communication
using a DF1 Polling Master driver for RSLinx software, or when using explicit messages from
Rockwell Automation controllers communicating via DF1 Half-duplex Master.
DF1 Full-duplex The DF1 Full-duplex protocol may be used only for point-to-point communication using a RS-232
DF1 driver for RSLinx software, or when using explicit messages from Rockwell Automation
controllers communicating via DF1 Full-duplex.
Modbus RTU Slave The Modbus RTU Slave protocol may be used for point-to-point or multi-drop communication with
a client using the Modbus RTU Master protocol for PLC controller communication.
Auto-sense With auto-sense selected, the RS-485 port switches among the available serial protocols based
on the format of the packets the port receives.
DH485 The DH485 protocol may be used for point-to-point or multi-drop communication using a 1747-
PIC/AIC+ driver for RSLinx software, or when using explicit messages from Allen-Bradley
controllers or HMI (PanelView) terminals communicating via DH485.