Omron V680S Series - Page 67

Section 2 Using Multi-Reader/Writer Operation
 Executing a READ DATA Command in Field Extension Mode.
 When the RF Tag Communications Option of the Master Reader/Writer Is Set to
Once
1. Send a READ DATA command from the host device to the Master Reader/Writer.
2. The Master Reader/Writer will communicate with the RF Tag using the Once communications option.
Here, communications will end normally or an RF Tag communications error will occur, the Reader/
Writer will return a response to the host device, and processing will end. If an RF Tag missing error is
detected, processing proceeds to step 3.
PLC
Master Reader/Writer
Slave
Reader/Writer No. 1
IP:192.168.1.200
IP:192.168.1.201
IP:192.168.1.202
Slave
Reader/Writer No. 2
IP:192.168.1.203
Slave
Reader/Writer No. 3
READ DATA
PLC
Master Reader/Writer
Slave
Reader/Writer No. 1
IP:192.168.1.200
IP:192.168.1.201
IP:192.168.1.202
Slave
Reader/Writer No. 2
IP:192.168.1.203
Slave
Reader/Writer No. 3