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6 Functions
UHF RFID System V780-series Reader/Writer User’s Manual (Z389)
6-10 Mu
lti-
Reader/W
riter Fu
nct
ion
6
6-
10-2 Multi-Read
er/W
rite
r Modes
Precautions for Correct Use
• While Multi-Reader/Writer communications processing is continuing, the NORM/ERR indica-
tors will not light red even if "RF Tag Missing Error" or "RF Tag Communications Error" is
detected in a Reader/Writer.
• The NORM/ERR indicator lamp of the Reader/Writer will light green/red after normal comple-
tion/error completion in Multi-Reader/Writer communications processing. Finally, the NORM/ERR
indicators of the master Reader/Writer will light green/red when replying to the host device.
• If multiple RF Tags are detected by any of the Reader/Writers in multiaccess
The master Reader/Writer communicates with the RF Tags by switching control of itself and the
Slave Reader/Writers in time division. While detecting multiple RF Tags within the timeout time,
communications processing will repeat by switching in the sequence of Master
→
Slave 1
→
Slave
2
→
Slave 3, and the communications result will be returned after timeout.
• If no RF Tags exist in any of the Reader/Writers in single-access/multiaccess
When the master Reader/Writer cannot complete communications within the timeout time, the com-
munications results ("RF Tag Missing Error" or "RF Tag Communications Error") will be returned
after timeout. If a duplicate "RF Tag Communications Error" is detected in the same RF Tag, the first
Reader/Writer detected will be returned.
Host device
Master Reader/Writer
Slave Reader/Writer 1
Slave Reader/Writer 2
Slave Reader/Writer 3
RF Tag movement
Communications
Commands
Timeout
RF Tag Missing
Command
Slave control
Response
RF Tag
RF Tag
RF Tag
RF Tag Missing
RF Tag
RF Tag Missing
RF Tag
RF Tag
RF Tag
“Once”
communications
“Once”
communications
“Once”
communications
“Once”
communications
“Once”
communications
“Once”
communications
Host device
Master Reader/Writer
Slave Reader/Writer 1
Slave Reader/Writer 2
Slave Reader/Writer 3
RF Tag movement
Communications
Commands
Timeout
RF Tag Missing or RF Tag Communications Error
Command
Slave control
Response
“Once”
communications
“Once”
communications
“Once”
communications
“Once”
communications
“Once”
communications
“Once”
communications
Summary of Contents for V780 Series
Page 22: ...Version Upgrade Information 20 UHF RFID System V780 series Reader Writer User s Manual Z389 ...
Page 60: ...3 Part Names and Functions 3 14 UHF RFID System V780 series Reader Writer User s Manual Z389 ...
Page 152: ...6 Functions 6 76 UHF RFID System V780 series Reader Writer User s Manual Z389 ...
Page 334: ...8 Browser Interface 8 44 UHF RFID System V780 series Reader Writer User s Manual Z389 ...
Page 358: ...9 Troubleshooting 9 24 UHF RFID System V780 series Reader Writer User s Manual Z389 ...
Page 392: ...Appendices A 30 UHF RFID System V780 series Reader Writer User s Manual Z389 ...
Page 393: ...I 1 I UHF RFID System V780 series Reader Writer User s Manual Z389 Index ...
Page 397: ......