Schneider Electric Modbus Plus Network Bridge Multiplexer none Manuel d'utilisateur télécharger pdf (Page 3)

Chapter 3 Connecting to a Controller

Setting up communications for your PC l 37

Setting up communications for your PC

Before your computer can connect to a controller (or, for some systems, the

gateway which relays information to and from the controller), NxT must be

configured for your communication system.

In the Communication Setup dialog box, you select the communication system

your computer uses to connect to your network of PLCs. You also set

communication parameters for your PC.

Configuring Modbus communications

The Modbus Communications Setup dialog box is divided into two parts:

Modbus parameters (top) and Modem settings (bottom). Set the Modbus

parameters if your computer is connected directly to a controller’s Modbus

port or if it connects to a controller’s Modbus port through a modem.

To connect with each other, your computer and controller must be configured for

the same communication system with the same parameters.

The controller must have the same Modbus settings as the computer. Set

Modbus parameters for your PLC with the Ports tab of the Controller

Configuration window or with its DIP switches.

v For more information, see “Controller configuration - Ports tab” on page62.

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Schneider Electric Modbus Plus Network Bridge Multiplexer none Manuel d'utilisateur Page 3