User guide

1: Introduction

DC 900-1338I 27

1.4.2 Opening a Session

After the DLI and TSI configurations are properly defined, your client application uses

the

dlOpen function to establish a DLI session with an ICP link. As part of the session

establishment process, the DLI establishes a TSI connection with the Freeway MsgMux

through the TCP/IP BSD-style socket interface for the Freeway server, or directly to the

ICP driver for the embedded ICP environment.

1.4.3 Exchanging Data with the Remote Application

After the link is enabled, the client application can exchange data with the remote appli-

cation using the

dlWrite and dlRead functions.

1.4.4 Closing a Session

When your application finishes exchanging data with the remote application, it calls the

dlClose function to disable the ICP link, close the session with the ICP, and disconnect