Parameterizing
5.2 Data communication between client and RF182C
RF182C communication module
Operating Instructions, 10/2010
39
● The RESET message frame created by the user is sent to the corresponding reader.
● The process continues with a command message frame depending on the application.
● After longer periods without message frames (approx. 3 s), the application (client) can
automatically send a heartbeat frame (line monitoring) to test the connection. The
RF182C communication module then acknowledges the message frame.
You yourself must ensure that the connection is monitored and define the interval after
which the client should automatically send a heartbeat message frame.
If, in case of an error, no response is sent in answer to the heartbeat message frame
from the RF182C, the client must then initiate further actions
(disconnect/connect/parameterize the reader).
● The connections (including TCP/IP) can be canceled by both sides due to the following
causes:
– Inactivity (timeout, keep-alive on TCP level)
– Connection error
– Disconnection request
● After disconnection by the server, the client must reconnect, send a RESET command,
etc.
Data communication
The graphic below shows the principle of data communication between application (client)
and RF182C:
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Figure 5-3
Data communication principle
Содержание RF182C
Страница 12: ...Description RF182C communication module 12 Operating Instructions 10 2010 ...
Страница 20: ...Mounting 3 5 Disassembling the RF182C RF182C communication module 20 Operating Instructions 10 2010 ...
Страница 66: ...Maintenance and Service 7 3 Reader update RF182C communication module 66 Operating Instructions 10 2010 ...
Страница 70: ...Diagnostics 8 1 Diagnostics using LEDs RF182C communication module 70 Operating Instructions 10 2010 ...
Страница 122: ...Command and acknowledgement telegrams RF182C communication module 122 Operating Instructions 10 2010 ...
Страница 128: ...Service support RF182C communication module 128 Operating Instructions 10 2010 ...