6 - 19
6 - 19
6. HOW TO COMMUNICATE WITH ID TAGS
6.3.6 Multi-trigger
With the multi-trigger communication specification, communication is performed with
one or more ID tags stopped within the antenna communication area.
1. When the ID instruction execution request (Y14, Y1C) is turned ON, ID tag
communication is started.
2. After communication with the ID tag ends, operation of the ID tag is disabled, and ID
instruction complete (X4, XC) turns ON. Communication is then started with the next
operable ID tag within the antenna communication area.
3. When result reception (Y16, Y1E) is turned ON, ID instruction complete (X4, XC)
turns OFF.
4. Subsequently, Steps 2 and 3 are repeated.
5. When communication with all operable ID tags within the antenna communication
area is completed, ID communication complete (X2, XA) is turned ON.
6. When the ID instruction execution request (Y14, Y1C) is turned OFF, ID instruction
complete (X4, XC) turns OFF and the module changes to a standby state.
C
communication
Within
communication area
Within communication area
Within communication area
(Movement of ID tag C)
ID instruction complete (X4, XC)
Communication with ID tag
(Movement of ID tag A)
ID instruction execution request (Y14, Y1C)
ID-BUSY(X3, XB)
(Movement of ID tag B)
Error detection (X5, XD)
Result reception (Y16, Y1E)
ID communication complete (X2, XA)
B
communication
A
communication
Operation disabled
Operation disabled
Operation disabled
When the ID instruction
execution request turns ON,
communication is performed
with the operable ID tags that
exist within the communication
area.
Communication area
ID tag A
ID tag B
ID tag C
