Tag Number Setting
Section 5-7
5-44
5-7
Tag Number Setting
The timeslot setting is the setting in the command frame when communicating with multiple Tags
simultaneously using Multi-system commands.
Tag Number Setting
Max. No. of Tags with which simultaneous
communication is possible
1
2
2
4
3
8
4
16
5
32
6
64
7
128
Example: If the number of Tags is seven, select Tag Number setting 3.
Note 1: If more Tags than have been set using the timeslot setting enter the communications
range, a “70” error may occur (e.g., if the timeslot setting is 2, and there are five Tags in
the communications range). Select a suitable setting by referring to the above table.
Note 2: With the Special Read Command (refer to 5-3-7 General Commands and Responses), be-
cause anti-collision processing is not performed, even if the number of Tags inside the
communications area is greater than the Tag Number setting, read data is returned. Data
is not returned, however, for Tags that collide.
Note 3: The higher the timeslot setting, the longer the communications time required. Conse-
quently, setting a higher timeslot setting than required for the number of Tags in use un-
necessarily lengthens communications time, so select a suitable setting.
