Siemens SIMATIC RF650R

Programming via XML interface
10.3 XML commands
SIMATIC RF650R/RF680R/RF685R
192 Configuration Manual, 03/2018, C79000-G8976-C386-06
10.3.1
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 10- 1 Sequence of connection establishment / termination
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.
If commands are sent without being preceded by the "hostGreetings" command, the reader
replies with the error message "ERROR_INVALID_READER_STATUS".