Moxa Technologies NPort 6110 user manual Typical Modbus Applications

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Typical Modbus Applications

In this chapter, we introduce three typical Modbus applications.

Serial master device talks to serial slave devices over the Internet

Let traditional Modbus serial devices talk over the Internet…

Many traditional serial Modbus devices can talk over RS-485, but the RS-485 network limits the maximum number of Modbus devices to 32, provided the transmission distance does not exceed 1.2 km.

By using Modbus Gateway, you can link all Serial Modbus devices over an Ethernet network. Up to 4 Modbus Gateways can be installed in the same control network, extending the coverage of a single Modbus network as far as a TCP/IP network can reach.

NPort 6110

RS-232

Modbus/RTU

 

Master device

 

 

Ethernet

 

 

 

NPort 6110

 

NPort 6110

NPort 6110

RS-232

 

RS-485

RS-485

Modbus/RTU

Slave devices

Flow meter

Loop controller

PLC

Drives

Power measurement

DCS

3-1

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Contents NPort 6110 Modbus/TCP To Serial Communication Gateway NPort 6110 Modbus/TCP To Serial Communication Gateway Moxa Internet Services Table of Contents Page Overview IntroductionPowerful operation modes for versatile Modbus applications FeaturesLAN Product SpecificationsEnvironmental Package ChecklistFront/Top/Rear/Bottom Panel Views Serial Installation Power ConnectionGetting Started Software Installation Ethernet InstallationPage Page Page Page DIN-Rail HousingWall Mount Typical Modbus Applications Connect all Modbus devices over the Ethernet network… Link the Serial Master device with Ethernet Slave devices… Configuring Modbus Gateway Starting Modbus Gateway Configurator Broadcast Search Searching for NPortSpecify by IP Address Modify Configuration Network Settings Alphanumeric Modbus SettingsPage Page Advanced Modbus Settings IP address Page Modbus Serial Settings RTS/CTS Uart Fifo Password Other Functions Upgrade FirmwareUnlock Page Start Log Monitor Remote Monitoring and ManagementPage ID No. mismatch TroubleshootingDB9 Male Pinouts Pin AssignmentsDeclaration of Conformity NPort 6110 Modbus Gateway Problem Report FormReturn Procedure