Omron CJ1W-V680C11, User Manual

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SECTION 5
Commun
ic
a
tion
s Spec
if
icat
io
ns
SECTION 5
ID Sensor Unit Functions
91
RFID System
User's Manual
Multi-access Trigger
With a multi-access trigger communications specification, communications are executed with multiple
RF Tags when a command is sent. The ID Sensor Unit sends responses sequentially as
communications with the RF Tags in the interrogation zone are completed. Move the results data
stored in the Data Storage Area to another area before the results data from the next RF Tag is stored.
After the ID Sensor Unit has completed communications with all of the RF Tags in the interrogation
zone, the ID Busy Flag will turn OFF, and the ID Sensor Unit will wait for the next command.
(Commands will be accepted for an Antenna that is not processing a command.)
When using the V680-D2KF
@@
/-D
@
KF68/V680S-D2KF6
@
with a multiple-access trigger specification, the normal
communications speed will be used regardless of the setting in DM m+0.
Multi-access trigger specification cannot be used for communicating with V680-D1KP @@ RF Tags.
Antenna
RF Tag
M u lti-access Trigger specification
Res u lts
Comm. A Comm. B Comm. C
Res u lts
Res u lts
RF Tag A
RF Tag B
RF Tag C
Comm u nications w ith
RF Tag
RF Tag mo v ement
M u lti-access Trigger Specification
RF Tag mo v ement
Command Exec u tion Bit
A b ort Bit
ID B u sy Flag
N ormal End Flag
Error End Flag
RF Tag mo v ement
N ote: Res u lts w ill b e ret u rned w hether
or not an RF Tag is present.
W hen the Command Exec u tion Bit (CIO n, b it 00)
is t u rned O N , the ID Sensor Unit w ill
comm u nicate w ith all RF Tags in the interrogation
zone. If there are no RF Tags in the interrogation
zone, an RF Tag missing error
w ill b e ret u rned.
N ote: After comm u nications w ith all RF Tags in the
interrogation zone ha v e b een completed, the
ID B u sy Flag w ill t u rn OFF.