Omron CJ1W-V680C11, User Manual

Page: 136 / 214

134
SECTIO
N
6
Communica
tions
Comman
d
s
RFID System
User's Manual
SECTION 6
Controlling the ID Sensor Unit

Data Check
Finds the CRC code for the data area from the specified start address to 2 bytes less than the specified
number of bytes and writes 2 bytes of data.
From 3 to 2,048 bytes of data can be specified for one command execution.
• Verification will not be performed if No Verification is set for writing.
• The last 2 bytes of the check area is the check code area. Do not write user data to these bytes.
• Check the memory capacity of the RF Tag before setting the Processing Address and Number of Processing Bytes. If
the Processing Address and Number of Processing Bytes are not suitable for the RF Tag for which communications
are being performed, RF Tag Address Error (CIO n+8, bit 13) will turn ON.
Word address
Bit No. Type Bit name Description
Antenna 1 of
CS1W-V680C11,
CS1W-V680C12,
CJ1W-V680C11,
or CJ1W-V680C12
Antenna 2 of
CS1W-V680C12
or
CJ1W-V680C12
n+1 n+11
08 to 15
Command
Command code 07 hex
04 to 07
Communications
specification
p. 85
Specify the communications method with
the RF Tag.
0 Trigger
1 Single auto
Processing
Specification
p. 70
Specify the process.
00 to 03
0 CRC calculation
1 CRC verification
n+2 n+12 00 to 15
Processing
Address Specify the Data Check Start address in
the RF Tag.
Setting range: 0000 to FFFD hex
n+3 n+13 00 to 15
Number of
Processing Bytes Specify the number of bytes in the data
check range in the RF Tag plus 2 bytes.
Setting range: 0003 to 0800 hex
n+4 n+14 00 to 15
Data
storage
area
Data Storage
Word Address
(rightmost 4 digits) 0000 hex
n+5 n+15
12 to 15 Data Storage Area 0000 hex
08 to 11 Bank Specification
00 to 07
Data Storage
Word Address
(leftmost 2 digits)
n+6 n+16 00 to 15 Option Command Option 0000 hex