System information

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2.6-3

February 2009

Power Management Systems & Products

Sheet 02

for Third-Party Integration

Ethernet/Modbus NetLink

051

Modbus NetLink

General Description

Communications

■ Ethernet-Based (TCP/IP via

10Base-T).

■ INCOM.

■ E-PONI.

■ Modbus RTU slave communications

through RS-232 port.

Physical Characteristics

■ Suitable for panel mounting.

■ Powered via 120/240 Vac.

■ 10Base-T connection.

Dimensions

■ Height: 7.8 inches (198 mm).

■ Width: 4.5 inches (114 mm).

■ Depth: 9.6 inches (244 mm).

■ Weight: 6 lbs. (2.7 kg.).

Application Description

Applications

■ Bridge multiple Cutler-Hammer

Power Management Software

devices to an Ethernet network.

■ Modbus RTU output for multiple

Cutler-Hammer Power Management

Software devices.

■ Historical data logging.

■ Event storage.

Metered/Monitored Parameters

Provides remote access over Ethernet

or Modbus to the protective and moni-

toring parameters of any supported

communicating Cutler-Hammer meter,

protective relay, breaker or motor

starter.

Features, Beneﬁts and Functions

General Description

The NetLink translates INCOM Fre-

quency Shift Key (FSK) to standard

Ethernet TCP/IP messages or Modbus

RTU or to both.

The Modbus NetLink (NetLink M) con-

verts data from as many as 200 meters

and protective relays into Modbus

RTU registers. Conﬁguration can be

done remotely and is stored in non-

volatile RAM. The Modbus NetLink

uses a register mapping technique to

map up to 10,000 read registers for

real-time data and read/write registers

for control commands for 200 devices.

Note: All 200 devices cannot be high-end

devices such as an IQ Analyzer or Protective

Relay. Call factory for details.

The Modbus NetLink is a server for

Cutler-Hammer device information to

Modbus master equipment via Mod-

bus RTU registers over an RS-232

communication medium. The Modbus

NetLink enables the following func-

tionality:

■ Connection of up to 200 Cutler-

Hammer meters and protective

relays into Modbus RTU registers.

■ A register mapping technique to

map up to 10,000 read registers

for real-time data and read/write reg-

isters for control commands.

■ A 10Base-T port for direct conﬁgura-

tion which is stored in non-volatile

memory.

■ Available for purchase with either

one or two INCOM ports.

Dual Ethernet/Modbus NetLink

The Dual Ethernet/Modbus NetLink

combines the functionality of the

Ethernet and Modbus NetLinks into

one package. This enables remote

monitoring of all connected equip-

ment via the Power Management

Software suite, as well as local com-

munications to a Modbus master

sharing the available information

for two completely separate and

independent functions.

Mounting Information

The most common location for the

NetLink is in a wall-mounted enclosure

near a patch panel, a network hub, or a

wall-mounted network port. Modbus

NetLinks should be mounted in close

proximity to the Modbus Master. The

distance between the Modbus Master

and the RS-232 output should not

exceed 50 feet (15 m) without the use

of external line drivers between serial

ports. The NetLink may be equipped

with up to two INCOM device network

ports. There will be an additional RJ11

jack and terminal for each INCOM

device network. Each additional port

will increase network performance in a

linear fashion. A 2-port NetLink will

deliver the same amount of data from

a ﬁxed number of devices in half the

time of a 1-port NetLink. NetLinks will

communicate with 200 devices regard-

less of the number of ports.

Catalog Information

Table 2.6-1. Building the NetLink Catalog

Numbering System

CSA is a registered trademark of the Canadian Stan-

dards Association. Explorer is a registered trademark

of Microsoft Corporation. Modbus is a registered trade-

mark of Modicon, a division of Schneider Electric

Industries SA. NEMA is the registered trademark and

service mark of the National Electrical Manufacturers

Association. UL and cUL are registered trademarks of

Underwriters Laboratories Inc. Windows and Microsoft

are registered trademarks of Microsoft Corporation.

Cutler-Hammer is a federally registered trademark of

Eaton Corporation.

N L

Number of Ports

1 = 1 INCOM Port

Communica-

tions Network

(standard)

2 = 2 INCOM Ports

Output

E = Ethernet

Output

M = Modbus

Output

D = Dual Com-

munications

Ethernet and

Modbus

($1000 Adder)

Port Type

T = 10Base-T

Ethernet

Port/AUl

(standard)