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Sec
tion 6
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Section 6
Functions
153
RFID System
User's Manual
(Modbus TCP)
3.
Slave No. 1 will wait for an RF Tag to enter the communications field and then communicate with the
RF Tag. Here, if an RF Tag communications error occurs, the Reader/Writer will return a response to
the host device, and processing will end. If communicating with the RF Tag ends normally, processing
will be continued in order by Slave No. 2 and then by Slave No. 3.
4.
If all communications with the RF Tag end normally, the read data is returned to the host device and
processing ends.
PLC
Switching Hub
Master Reader/Writer
Slave
Reader/Writer
No. 1
IP:192.168.1.200
IP:192.168.1.202
Slave
Reader/Writer No. 2
IP:192.168.1.203
Slave
Reader/Writer No. 3
IP:192.168.1.201
Direction of line
movement
PLC
Switching Hub
Master Reader/Writer
Slave
Reader/Writer
No. 1
IP:192.168.1.200
IP:192.168.1.202
Slave
Reader/Writer No. 2
IP:192.168.1.203
Slave
Reader/Writer No. 3
IP:192.168.1.201
Direction of line
movement
Response
1