Since Firmware Version V1.50, the RFU6xx provides the information that a transponder enters the field "tag arrival" or that a transponder leaves the field "tag departure". To get that information, an event has to be subscribed. Please note that a frequently reading is required. Therfore use the freewheel or auto-cycle mode. There are two events available:

Activate the ATS Filter:

The tag arrival event can be subscribed with the following command:

Send:
sEN TTRNewArrTags 1

Receive:
sEA TTRNewArrTags 1

⚠ The command to subscribe to the Tag Arrival Event has to be sent again after each new TCP/IP connection.

First it has to be defined when a tag departs the field. Therefore you can choose a departure timeout between 1000~10000ms. To change the parameter by command, a login/logout is required. Please check the application conditions when using small values. If there are holes in the field, a longer time would be required to prevent multiple events for one tag. Alternatively, it is also possible to set the departure timeout for individual antenna in SOPAS

Example with tag departure time of 2000 ms:
sMN SetAccessMode 3 7A99FDC6 
sAN SetAccessMode 1 
sWN TTRLifetime_1 +2000 
sWA TTRLifetime_1 
sMN Run 
sAN Run 1

After that, you can subscribe the event with the following command:
sEN TTRDepTags 1
sEA TTRDepTags 1

⚠ The command to subscribe to the Tag Arrival Event has to be sent again after each new TCP/IP connection.

Output when tag enters field:
sSN TTRNewArrTags 0 1C 35A1FFFFFB63AC1F3681EC880004 2F1B6F 0

Output 2000 ms after tag has left the field:
sSN TTRDepTags 1 0 1C 35A1FFFFFB63AC1F3681EC880004 2F3189 0

Tag arrival: Output when a new tag enters the field:

Example:
sSN TTRNewArrTags 0 1C 35A1FFFFFB63AC1F3681EC880004 2F1B6F 0

Tag departure: Output after a transponder has left the field:

Example 1: One transponder
sSN TTRDepTags 1 0 1C 35A1FFFFFB63AC1F3681EC880004 2F3189 0

Example 2: Two transponders
sSN TTRDepTags 2 0 1C 35A1FFFFFB63AC1F3681EC880004 A921A55 0 0 1C 30A13005BBBBAAAABBBBAA020001 A921A55 0

To output only the result strings from the arrival and departure events it is necessary to deactivate the output of the output format. To deactivate the output format choose "no output" in the Ethernet settings.