Getobservedtagids - Siemens SIMATIC RF600 Series Configuration Manual

Programming via XML interface
10.3 XML commands
Parameter
value_inventoried
value_
filterDataAvailable
10.3.3.5

getObservedTagIDs

With this command, the selected read point takes an inventory and returns all identified
transponders in the reply frame.
In contrast to the "readTagIDs" command, the smoothing algorithm of the selected read point
is also affected here. The read point must therefore take enough inventories until a
transponder adopts the "Observed" status. This can be achieved by selecting the suitable
parameter values or by triggering/starting the read point in good time before the command.
If no transponder was identified with the "Observed" status, a positive reply without
transponder data is returned.
To be reported, a transponder must have had the "Observed" status at least once at the start
of or during the command execution time. The transponder is reported even if it returned
temporarily to the "Lost" status.
The command remains active during the entire duration. In the implementation of the client
application, make sure that timeout monitoring is used. The configuration parameters of the
data source (read cycles per trigger, read timeout, ...) are not used. You will find more
information on parameters in the section "The "Settings - Read points" menu item
(Page 52)".
Note
Filter mechanisms influence the results
Defined filter mechanisms influence the results (refer to the section "The "Settings - Filters"
menu item (Page 66)"). Then in the reply frame, only the transponders that were not filtered
out appear.
Note
Delay of the reply frames
A reply frame of the reader can be delayed additionally by the set duration of the command.
180
Type Values
Decimal value 0...65535
0...9
Fixed values True
False
Description
Optional
Indicates how often the transponder
was identified via the air interface in
this command.
Optional
Indicates whether or not a filter criteri-
on was received.
True:
•
All the data was read or there was
no filter set.
False:
•
Data could not be read.
Configuration Manual, 11/2018, C79000-G8976-C386-07
SIMATIC RF600