calling WriteToLine with a zero value of parameter Len just causes the TCP connection to be closed (this can be used, for example, in systems with instances of KOM processes or in redundant systems to close a TCP connection if the KOM process is passive or is connected to the SBS kernel)
calling the WriteToLine function with a non-zero value of parameter Len triggers an attempt to establish a connection unless the connection is connected
the WriteToLine function returns False if a write error has occurred (e.g., TCP connection was broken)
subsequent calling of the WriteToLine or ReadFromLine functions will cause an attempt to re-established the connection
if the connection is established, the requested operation is executed (WriteToLine - writing data, ReadFromLine- reading data)
if multiple IP addresses (separated by a comma or semicolon) are configured in the line configuration, the KOM process cyclically attempts to establish a connection to these IP addresses