Jetter JVM-407B-HMI, User Manual

Page: 222 / 300

222 Jetter AG
10 Programming
Initializing the user-programmable IP interface
This function must be initialized each time the application program is
launched.
Function ConnectionInitialize():Int;
The following return value is possible:
Return value
0 Always
The function is used and its return value assigned to a variable for further
utilization in the following way:
Result := ConnectionInitialize();
The device JVM-407B processes this function in the following steps:
Step Description
1 The device JVM-407B closes all open connections of the
user-programmable IP interface.
2
The device JVM-407B initializes all OS-internal data structures of the
user-programmable IP interface.
 Establishing a connection (see page 223)

Terminating a connection
(see page 232)
 Sending data (see page 227)

Receiving data (see page 229)
Introduction
Function declaration
Return value
How to use this function
Operating principle
Related topics