6 - 16
6 - 16
6. HOW TO COMMUNICATE WITH ID TAGS
6.3.3 Repeat auto
With the repeat auto communication specification, communication is performed while
the ID tag is being moved.
Communication is performed with the ID tags that enter the antenna communication
area one after the other, until the ID instruction execution request (Y14, Y1C) is turned
OFF.
1. When the ID instruction execution request (Y14, Y1C) is turned ON, ID tag detection
is started.
2. When an ID tag enters within the antenna communication area, communication with
the ID tag is started.
3. After communication with the ID tag ends, ID instruction complete (X4, XC) turns
ON.
4. When result reception (Y16, Y1E) is turned ON, ID instruction complete (X4, XC)
turns OFF and detection of the next ID tag within the antenna communication area is
started.
5. Subsequently, Steps 2 to 4 are repeated.
6. When the ID instruction execution request (Y14, Y1C) is turned OFF, ID tag
detection is ended.
7. With the repeat auto communication specification, communication cannot be
performed normally and error detection (X5, XD) turns ON when multiple ID tags are
within the antenna communication area at once. Thus, make sure there is only one
ID tag within the antenna communication area.
Communication
Communication
Communication
Within
communication area
Waiting for
ID tag
Waiting for ID tag
Within
communication area
(Movement of ID tag C)
Within
communication area
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)
Waiting for ID tag
Communication is started by the
ID tag entering within the
communication area.
Communication area
ID tag C
ID tag B
ID tag A
