Schneider Electric Modbus Plus Network Bridge Multiplexer none Manual do Utilizador descarregar pdf (Página 6)

ProWORX NxT User’s Guide

40 l Modbus communications by modem

Ÿ If it finds a connection (or after opening one), you can choose to select

a Modbus device or close the connection and open a new one.

Use a modem connection to a controller just like a direct Modbus link. You can

scan for and attach to Modbus devices (and Modbus Plus devices, if the

controller supports Bridge Mode to allow you to connect to a Modbus Plus

network) just as you normally would.

Ø To select and configure Modbus communications using modems:

1. From the ProWORXNxT Title Screen or the Offline Network Editor,

on the Controller menu, click Communications Setup.

2. From the Interface list on the left of the Communications Setup dialog

box, select Modbus.

NxT uses the same information to configure modems as ProWORXplus, so

users going from one program to the other can copy the settings directly.

These parameters affect

the PC only. They must

match the parameters

set for the controller.

After you choose a com-

munication system from

the list on the left, its op-

tions appear on the right.

To select Modbus com-

munications, the Modem

Type must be set to None.

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Schneider Electric Modbus Plus Network Bridge Multiplexer none Manual do Utilizador Página 6