Omron CJ1W-V680C11, User Manual

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SECTIO
N
6
Communica
tions
Comman
d
s
SECTION 6
Controlling the ID Sensor Unit
129
RFID System
User's Manual

Bit Clear
Reads the specified number of bytes from the specified start address and clears the specified bits to 0.
For the Designation Data, set a hexadecimal value with the bits to be cleared to 0 turned ON.
Up to 4 bytes (i.e., 2 words) can be specified for one command execution.
The following example shows specifying 100140 hex for 3 bytes of data to clear bit 4 in byte 1, bit 0 in
byte 2, and bit 6 in byte 3.
• Data status will not be changed for any bit that is OFF in the Designation Data.
• Verification will not be performed if No Verification is set for writing.
• 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, the RF Tag Address Error Flag (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 03 hex
04 to 07
Communications
Specification
p. 85
Specify the communications method with the RF
Tag.
0 Trigger
1 Single auto
2 Repeat auto
3 FIFO trigger
4 FIFO repeat
5 Multi-access trigger
6 Multi-access repeat
00 to 03
Processing
Specification
p. 70
Specify the storage order for the Designation
Data.
0 Leftmost
→
Rightmost
1 Rightmost
→
Leftmost
n+2 n+12 00 to 15
Processing
Address Specify the first RF Tag address to write.
Setting range: 0000 to FFFF hex
n+3 n+13 00 to 15
Number of
Processing Bytes Specify number of RF Tag bytes to write.
Setting range: 0001 to 0004 hex
n+4 n+14 00 to 15
Data
storage
area
Data Storage Word
Address (rightmost
4 digits) Specify the write data storage destination.
p. 70
n+5 n+15
12 to 15 Data Storage Area
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
0 0 0 1 0 0 0 0
0 0 0 0 0 0 0 1
=
1 0 0 0 0 0 0 0
0 0 1 0 0 0 0 0
0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1
Designation Data in
Data Storage Area
0
1
2
7
Data W ritten to
RF Tag
0
1
2
3 3
7
1 0 0 0 0 0 0 0
0 0 1 0 0 0 0 1
0 0 0 0 0 0 0 1
RF Tag Data
0
1
2
7
3
The data in b oxes is cleared.
Bit
Bit
Bit
Bit
Bit
Bit