Omron V780-Series User Manual page 82

6 Functions
Additional Information
The behavior of the RF Tag that has communicated once with the Reader/Writer depends on
the Gen2 session setting in the advanced RF communications settings. For details, refer to
Gen2 Session on page 6-26.
Multiaccess Operation
RF Tag RF Tag
RF Tag RF Tag
After the command from the host device is executed, the Reader/Writer automatically detects any
RF Tags that enter the communications range and starts communications when even one RF Tag is
detected. If the Reader/Writer then detects more RF Tags within the timeout time, it waits for the tim-
eout and then returns the communications results. Communications results are not returned for RF
Tags that could not be communicated with within the timeout time.
Communications command
Host device
Reader/Writer
RF Tag movement
Additional Information
The behavior of the RF Tag that has communicated once with the Reader/Writer depends on
the Gen2 session setting in the advanced RF communications settings. For details, refer to
Gen2 Session on page 6-26.
6 - 10
Communications start when one of the
RF Tags enters the communications range.
RF Tag
Reader/Writer
Auto communications
RF Tag RF Tag
UHF RFID System V780-series Reader/Writer User's Manual (EtherNet/IP
Timeout
Response
RF Tag RF Tag
TM
) (Z402)