Quantum NOE Ethernet Messaging Configuration

Introduction

Ethernet messaging gives the user the opportunity to send and receive Ethernet messages. Data traffic is handled by the client/server procedure.

Parameter description:

Setting	Description
Connection configuration	Activates general data transfer.
Access	Activates data transfer between specific nodes.
IP Address	Defines the node for the Ethernet Messaging procedure.
Access Control	Activates or deactivates control of remote devices that are attempting to open a TCP connection to the module.

Messaging Tab

The following procedure shows how to access the Messaging page:

Step	Action
1	In the Control Expert project browser, go to the Structural view. Expand (+) the Communication folder until you locate the name of the Ethernet logical network associated with the module.
2	Right click the Ethernet logical network and select Open. Result: The module configuration screen appears.
3	Select the Messaging tab. (See the illustration below.)

The Messaging tab is shown below.

Configuration parameters can be accessed in two areas on the Messaging tab screen:

the Connection Configuration area
the Access Control area

Connection Configuration Area

The Connection Configuration area is used to:

activate an access control utility
list the remote devices that can connect to the module according to a communication protocol

Access Control

The Access Control box is used to activate or deactivate control of remote devices that are attempting to open a TCP connection to the module. The functionality depends on whether the box is checked or not:

checked: Access control management is activated and the Access column of the table is active (no longer grayed out).
- The module can only communicate to the addresses entered in the 128 available spaces in the Slave IP Address column.
- With the module in client mode it can only connect to remote devices selected by the Access column in the Connection Configuration table.
unchecked: Access control management is inoperative and the Access column of the table is not active (grayed out).
- With the module in server mode, remote third-party devices can connect as clients (before communication with the module) without being declared in the table.

NOTE: Access control is only effective on the TCP/IP profile and assists module operations in server and client mode.