GE Industrial Solutions POWER LEADER Modbus Concentrator User Manual

g

DET-136A

POWER LEADER™
Modbus® Concentrator

Product Overview

GE’s recent introduction of the POWER LEADER
Modbus Concentrator brings a new level of
performance and compatibility to users of GE’s
POWER LEADER communication network (commnet)
family of power management devices. Used in
conjunction with GE’s Power Management Control
System 5.0 (PMCS) software, the Modbus Concentrator
allows you to integrate your existing base of commnet
devices into the faster Modbus Remote Terminal Unit
(RTU) based PMCS network, improving overall system
performance while retaining the full functionality of
each commnet device.

Modbus RTU is an industry-standard communications
protocol that operates on an RS485 network. The
Modbus RTU protocol is widely supported for
supervisory control and data acquisition (SCADA)
systems, building management systems (BMS) and
distributed control systems (DCS). Industry leaders
such as Multilin, Power Measurements Limited, and GE
Fanuc produce Modbus RTU-compatible devices and
programmable logic controllers.

Modbus’ open architecture provides a high level of
flexibility while reducing the risks associated with
proprietary communications protocols. Key benefits of
the Modbus RTU protocol include:

• Devices and systems can be upgraded easily.

• A wide range of compatible devices from a

variety of manufacturers is supported.

• Communications are extremely flexible, both

upstream (to DCS, SCADA and BMS systems)
and downstream (to meters and trip units).

GE’s Power Management Control System 5.0 is a
powerful yet easy-to-use software package. It provides

communications and control functions for Modbus
RTU-compatible devices and (via the Modbus
Concentrator) commnet-based devices (such as the
POWER LEADER Meter or MicroVersaTrip trip unit).
The Concentrator polls data from up to 32 commnet
devices and communicates this data with PMCS. PMCS
may also communicate with other Modbus-native
devices such as the GE Fanuc 90/70 and 90/30
Programmable Logic Controllers, and Electronic Power
Meter (EPM) 3710/3720 waveform capture meters.

For current POWER LEADER commnet device users,
the POWER LEADER Modbus Concentrator provides a
modular and cost-effective way to meet future power
management needs by offering a link from commnet to
the higher speed Modbus network.

Upgrading an existing commnet network with POWER
LEADER Modbus Concentrators and PMCS has two
important benefits. First, your network may benefit
from increased overall performance, because the
Modbus Concentrator provides the higher speed of
Modbus communications. Second, PMCS is compatible
with many Modbus devices. As your needs change and
grow, PMCS supports a wide array of devices to meet
those needs, while maintaining compatibility of your
commnet devices through the Modbus Concentrator.

Conversely, if you are a user of PMCS equipped with
Modbus devices who wishes to use commnet devices,
you may add such devices to your network via the
Modbus Concentrator. Up to 215 commnet devices may
be attached (via multiple Modbus Concentrators) to a
single Modbus RTU network, allowing you to build a
power management system with maximum
functionality and flexibility.

Standard Features

• One-piece steel case construction
– Simple installation (no cutouts)

• Ease of operation
– Four-character alphanumeric high-contrast LED

display
– Simple four-button keypad
– All setup done via faceplate keypad and display; no

confusing DIP switches
– Quick automatic setup capability

Product Specifications

Catalog Number

Description Catalog Number

POWER LEADER
Modbus Concentrator

Communications

• POWER LEADER Eight individual segments
commnet supporting up to

four devices per segment

• Modbus RTU One RS485 input port,

One RS485 output port
(1200 baud, 2400 baud,
4800 baud, 9600 baud,
and 19.2 Kbaud)

Power Requirements

• Control power 85 Vac – 265 Vac

100 Vdc – 250 Vdc

PLZOOMG01

• Communications
– Communicates on POWER LEADER commnet

communications protocol

– Communicates on Modbus RTU communications

protocol

– Each Modbus Concentrator supports up to 32

commnet devices (maximum 215 Commnet
devices per RS485 network possible with multiple
Concentrators)

Standards

• UL listed 508 & 840

• CSA certified C22.2 No. 14

Environment

• Operating temperature range –0° to +70° C

• Storage temperature range –20° to +80° C

• Relative humidity 5% to 95%

noncondensing

• Vibration response and IEC 255-21-1

endurance Severity Class 1

• Fast transient surge ANSI C37.90.1

• Radiated EMI withstand ANSI C37.90.2

capability

• Electrostatic discharge IEC 801-2

Severity Class 4

Supported POWER LEADER commnet Devices

Meters

• POWER LEADER Meter

• POWER LEADER Electronic Power Meter

Protection and Control Devices

• Spectra RMS™ Electronic Control Module

• POWER LEADER MDP200 Overcurrent Relay

Other Devices

• POWER LEADER Repeater

• POWER LEADER Junction Box

Trip Units

• MicroVersaTrip for Spectra Molded Case circuit

breakers (RMS6)

• MicroVersaTrip for Power Break and Type AKR

circuit breakers (RMS9C)

• MicroVersaTrip for Power Break II circuit breakers

(RMS9D)