Omron V780-HMD68-EIP-JP, Руководство пользователя, Страница: 87 / 326

6 - 15
6 Functions
UHF RFID System V780-series Reader/Writer User’s Manual (EtherNet/IP
TM
) (Z402)
6-2
R
F
T
ag C
o
mm
un
ic
ati
o
ns
6
6-
2-4 Co
mmunications Commands
The following table lists the communications commands. Depending on the communications command
specified by the host device, single-access or multiaccess communications are performed with RF
Tags.
Precautions for Correct Use
Communications may not be performed correctly for single-access communications commands
if there is more than one RF Tag in the communications range of the Reader/Writer. Use multi-
access communications commands to communicate with more than one RF Tag.
6-2-4 Communications Commands
Command name
Access
method
Description
DATA READ
Single-access
Reads data from the memory of the RF Tag in the communica-
tions range.
DATA WRITE
Single-access
Writes data to the memory of the RF Tag in the communications
range.
ID READ
Single-access
Reads the UII (EPC code) of the RF Tag in the communications
range.
ID WRITE
Single-access
Writes the UII (EPC code) of the RF Tag in the communications
range.
LOCK Single-access Locks the memory of the RF Tag in the communications range.
DATA FILL
Single-access
Writes the specified data to the specified number of words begin-
ning from the specified write start address. The specifications are
made in the command.
MULTIACCESS ID READ
Multiaccess
Reads the UIIs (EPC codes) of multiple RF Tags in the communi-
cations range.
MULTIACCESS DATA
READ
Multiaccess
Reads data from the memory of multiple RF Tags in the communi-
cations range.