Connections - Siemens SIMATIC RF650R Configuration Manual

XML interface
8.3 XML commands
8.3.1

Connections

This section describes all the commands with which you can control the connection between
the user application and the reader.
The following diagram shows how a connection is established and terminated.
Table 8- 1
Connection establishment / termination
If commands are sent without being preceded by the "hostGreetings" command, the reader
replies with the error message "ERROR_INVALID_READER_STATUS".
146
Sequence of connection establishment / termination
Step Description
①
The user application sends the command
"hostGreetings" to the reader.
②
The reader returns a positive reply frame.
③
After the connection has been established,
the user application communicates with the
reader.
It sends, for example, a heartbeat frame at
regular intervals.
④
For each command, the reader sends a
reply frame.
⑤
The user application sends the command
"hostGoodbye" to terminate the connection.
⑥
The reader sends a positive reply frame.
The reader then disconnects the existing
TCP/IP connection.
SIMATIC RF650R/RF680R/RF685R
Configuration Manual, 10/2015, C79000-G8976-C386-03