Moxa Technologies MGate MB3480 Manuel utilisateur

P/N: 1802034800016

*1802034800016*

MGate MB3480

Quick Installation Guide

Version 7.1, October 2019

Technical Support Contact Information

www.moxa.com/support

Moxa Americas:

Toll

-free: 1-888-669-2872

Tel:

1-714-528-6777

Fax:

1-714-528-6778

Moxa China (Shanghai office):

Toll

-free: 800-820-5036

Tel:

+86-21-5258-9955

Fax:

+86-21-5258-5505

Moxa Europe:

Tel:

+49-89-3 70 03 99-0

Fax:

+49-89-3 70 03 99-99

Moxa Asia-Pacific:

Tel:

+886-2-8919-1230

Fax:

+886-2-8919-1231

Moxa India:

Tel:

+91-80-4172-9088

Fax:

+91-80-4132-1045



- 2 -

Overview

The MGate MB3480 is a 4-port Modbus gateway that converts between

Modbus TCP and Modbus RTU/ASCII protocols. It can be used to allow

Ethernet masters to control serial slaves, or to allow serial masters to

control Ethernet slaves. Up to 16 TCP masters and 124 serial slaves can

be connected simultaneously.

Package Checklist

Before installing the MGate MB3480 Modbus gateway, verify that the

package contains the following items:

•1 MGate MB3480 Modbus gateway

•Power adapter

•4 Stick-on pads

•Quick installation guide (printed)

•Warranty card

Optional Accessory

•DK-35A: DIN-rail mounting kit (35 mm)

•Mini DB9F-to-TB Adapter: DB9 female to terminal block adapter

Notify your sales representative if any of the above items is missing or

damaged.

NOTE

This product is designed to be powered by a listed power

source marked "LPS" and is rated 12 to 48 VDC and 0.25 A

minimum. The device's operating temperature when using the

power adapter is 0 to 40°C (32 to 104°F), and 0 to 60°C (32 to

140°F)

when using an

alternative DC power source. If you need

additional assistance purchasing a power source, please contact

Moxa for more information.

- 3 -

Hardware Introduction

As shown in the following figures, the MGate MB3480 has 4 DB9 male

ports for transmitting serial data.

Reset Button—The reset button is used to load factory defaults. Hold

the reset button down for five seconds using a pointed object such as a

straightened paper clip. Release the reset button when the Ready LED

stops blinking in order to load the factory defaults.

LED Indicators—Six LED indicators are located on the top panel:

Name

Color

Function

Ready

Red

Steady on:

Power is on and the unit is booting up.

Blinking:

IP conflict exists, or DHCP or BOOTP

server did not respond properly.

Green Steady on:

Power is on and the unit

is functioning

normally.

Blinking:

Unit has found by the Location

command in MGate Manager.

Off

Power is off or power error condition exists.

Link

Orange

10 Mbps Ethernet connection.

Green

100 Mbps Ethernet connection.

Off

Ethernet cable is disconnected or has a short.

P1/P2/

P3/P4

Orange

Unit is receiving data from device.

Green

Unit is transmitting data to device.

Off

No data is being exchanged with device.

- 4 -

Hardware Installation Procedure

STEP 1:

After unpacking the unit, connect the power supply or power

adapt

er to the unit. Make sure that the adapter is connected

to an earthed socket outlet.

STEP 2:

Use a standard straight

through Ethernet cable to connect the

unit

to a network hub or switch. Use a cross-over Ethernet

cable if you are connecting the gateway directly to a PC

STEP 3:

Connect your device to the desired port on the

unit.

STEP 4:

Place or mount the unit. The unit may be placed on a

horizontal surf

ace such as a desktop, mounted on a DIN-rail,

or mounted on the wall.

Wall or Cabinet Mounting

wo metal plates are provided for mounting

the unit on

to a wall or inside a cabinet.

Attach the plates to the unit

’

s rear panel with

the provided

screws. With the plates

attached, use screws to mount the unit on a

wall.

Mounting the MGate MB3480 onto a wall

requires two screws. The head of the screws

should be 5.0 to 7.0 mm in diameter, the

shaft should be 3.0 to 4.0 mm in diameter,

and the length of the screws s

hould be at

least 10.5 mm.

DIN-rail Mounting

DIN rail attachments can be purchased separately to mount the MGate

MB3480 on a DIN rail. When mounting the unit on a DIN rail, make

sure that it is oriented with the metal springs on top.

Wall Mounting

DIN-rail Mounting

Termination Resistor and Adjustable Pull High/Low Resistors

For some RS-485 environments, you may need to add termination

resistors to prevent the reflection of serial signals. When using

termination resistors, it is important to set the pull high/low resistors

correctly so that the electrical signal is not corrupted. For each serial

port, DIP switches are used for termination resistor and pull high/low

resistor settings. To enable the 120 Ωtermination resistor, set switch 3

on the assigned DIP switch to ON; set it to OFF (the default setting) to

disable the termination resistor. To set the pull high/low resistors to

150 KΩ(the default setting), set switches 1 and 2 on the assigned DIP

switch to the OFF position; set them both to ON for 1 KΩ.

- 5 -

MGate MB3480 DIP Switches

Pull High/low Resistors for the RS-485 Port

Pull High

Pull Low

Terminator

1 K

Ω

1 K

Ω

120

Ω

Default

OFF

150 K

Ω

150 K

Ω

–

Software Installation

You can download the MGate Manager, User's Manual, and Device

Search Utility (DSU) from Moxa's website: www.moxa.com. Please refer

to the User’s Manual for additional details on using the MGate Manager

and DSU.

The MGate MB3480 also supports login via a web browser.

Default IP address: 192.168.127.254

Default account: admin

Default password: moxa

Pin Assignments

Ethernet Port (RJ45)

Signals

Tx+

Tx-

Rx+

Rx-

Serial Port (Male DB9)

Pin RS-232

RS-422/485

(4-Wire)

RS-485 (2-

Wire)

DCD

TxD-(A)

–

RxD

TxD+(B)

–

TxD

RxD+(B)

Data+(B)

DTR

RxD-(A)

Data-(A)

GND

DSR

–

RTS

–

CTS

–

- 6 -

Environmental Specifications

Power Requirements

Power Input

12 to 48 VDC

Power Consumption

385 mA @ 12 VDC, 110 mA @ 48 VDC

Operating Temperature

0 to 60°C (32 to 140°F)

Storage Temperature

-40 to 85°C (-40 to 185°F)

Operating Humidity

5 to 95% RH

Dimensions

With ears:

Without ears:

35.5 x 102.7 x 181.3 mm

(1.40 x 4.04 x 7.14 inch)

35.5 x 102.7 x 157.2 mm

(1.40 x 4.04 x 6.19 inch)

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