Omron V780-HMD68-EIP-JP, User Manual

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7 Ethernet/IP Communications
UHF RFID System V780-series Reader/Writer User’s Manual (EtherNet/IP
TM
) (Z402)
7-
2 V780 Co
mm
and
Detail
s
7
7-2
-2 Multia
ccess Co
mmunications Commands
z Function
This command specifies reading the IDs (i.e., the ECP codes) of the RF Tags in the communications
range.
* It can also be used when the communications mode is Repeat.
z Command Area
z Response Area
7-2-2 Multiaccess Communications Commands
MULTIACCESS ID READ
Signal/data Data type Size Function
CmdCode/Command Code WORD 2 bytes 0203 hex
CmdParam1/Command Parameter 1 WORD 2 bytes 0000 hex (Not used.)
CmdParam2/Command Parameter 2 WORD 2 bytes 0000 hex (Not used.)
Reserved/Reserved Area WORD 2 bytes 0000 hex (Not used.)
Cnt Response/Update Counter
Response WORD 2 bytes 0000 hex (At command execution)
The value is counted up due to a change in
the update counter.
For details, refer to
Update Counter/Update
Counter Response on page 7-10.
Signal/data Data type Size Function
ErrCode/Error Code WORD 2 bytes Error code
RespInfo1/Response Information 1 WORD 2 bytes R/W no. of the Reader/Writer communicating
with the RF Tag
0000 to 0007 hex
RespInfo2/Response Information 2 WORD 2 bytes Communications diagnostics result
When communications diagnostics is
enabled: Set the communications diagnostics
result
When communications diagnostics is dis-
abled: 0000 hex (fixed)
For details, refer to
GET COMMUNICATIONS
DIAGNOSTIC INFORMATION on page 7-70.
RespInfo3/Response Information 3 WORD 2 bytes Reception level
FFFF to FF9D hex (-1 to -99 [dBm])
Cnt/Update Counter WORD 2 bytes 0000 to FFFF hex
The value is counted up due to a change in
the response area.
For details, refer to
Update Counter/Update
Counter Response on page 7-10.
RespData/Response Data
StoredPC WORD 2 bytes Expresses the StoredPC in 2-digit hexadecimal.
The upper 5 bits are the UII (EPC) word
length.
UII (EPC code) ARRAY[]
OF WORD 0 to 31
words Stores the tag-specific information according
to Gen2 standards.