isConnected

Declaration

boolean isConnected(S7RClientSSjToken token).

Purpose

This method tests whether the connection for this token is valid (connected to the Substation ES).

Parameters

Return

The method returns a boolean value, where true means connection is still active and false means the connection is NOT active or token is bad.

Example

S7RClientSSj conn = new S7RClientSSj();
S7RClientSSjToken token = conn.Connect(url, userid, password);
if (conn.isConnected(token)) {
byte[] dataIn = conn.receiveWait(token);
if (dataIn != null)  processData(dataIn);
conn.Disconnect(token);
}