Messaging Configuration Parameters

Accessing Messaging Configuration Parameters

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 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 communicating 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.

NOTE: If you select the Access Control check box but do not enter addresses in the IP address column, messaging will stop working.