User Manual

2022-11
54
IUH-F192-V1-*
Operation
Responses Depending on Protocol Mode QV
Q Value QW
In accordance with EPC Gen 2 (ISO/IEC 18000-63), the slotted ALOHA principle is used for
anticollision. The number of time slots is defined as 2
Q
. The parameter QW defines the Q
value. As a guide, the number of time slots should roughly correspond to the number of
expected tags in the measurement range.
Command
Parameter QV
Single-frame protocol Multiframe protocol
Responses
SS No tag:
5<ChanNo>
One tag:
0<ChanNo><UII>
Two tags:
A<ChanNo>
No tag:
F<ChanNo>0000
Two tags:
0<ChanNo><Luii><UII1>
0<ChanNo><Luii><UII2>
F<ChanNo>0002
SR, #SR
SF
No tag:
5<ChanNo>
One tag:
0<ChanNo><data>
Two tags:
A<ChanNo>
No tag:
F<ChanNo>0000
Two tags:
0<ChanNo><Luii><UII1><Ldata><data>
0<ChanNo><Luii><UII2><Ldata><data>
F<ChanNo>0002
SW, #SW No tag:
5<ChanNo>
One tag:
0<ChanNo>
Two tags:
A<ChanNo>
No tag:
F<ChanNo>0000
Two tags:
0<ChanNo><Luii><UII1>
0<ChanNo><Luii><UII2>
F<ChanNo>0002
ES No tag:
5<ChanNo>
One tag added:
0<ChanNo><UII>
One tag added:
A<ChanNo>
One tag removed:
0<ChanNo><UII>
All tags removed:
5<ChanNo>
No tag:
5<ChanNo>
Two tags added:
0<ChanNo><Luii><UII1>
0<ChanNo><Luii><UII2>
Tag 1 removed:
5<ChanNo><Luii><UII1>
Tag 3 added:
0<ChanNo><Luii><UII3>
Tag 4 added (UII same as tag 2):
A<ChanNo><Luii><UII2>
All tags removed:
5<ChanNo><Luii><UII2>
5<ChanNo><Luii><UII3>
5<ChanNo><Luii><UII2>
SP No tag:
5<ChanNo>
One tag:
0<ChanNo>
Two tags:
A<ChanNo>
No tag:
F<ChanNo>0000
One tag:
0<ChanNo><NUL><Luii><UII1>
F<ChanNo>0001
Two tags:
0<ChanNo><NUL><Luii><UII1>
A<ChanNo><NUL><Luii><UII2>
F<ChanNo>0002
Table 6.2 <CHCK><ETX> omitted at the end of each response due to space requirements
ParamTyp: QW
Default: QW = 2
Value range: 0 ... 7