Omron V600 Series User Manual page 121

■ 1:N Communications
Command
Mode
specifi-
Controller No.
Command code
cation
@ x x M D S/L
3 2
Mode specification
R/W Head No.
Area start address
Decrement/increment
count
Note: The write life of a Data Carrier without a battery at an ambient temperature of 40C is 300,000
overwrites.
If the start address is set between @@@6H and @@@7H or between @@@EH and @@@FH, an address error (error
code: 7A hexadecimal) will be returned as the end code.
Response
Command code End code
Controller No.
@ x x 7
M D
3 2 2
End code
R/W Head No.
Decrement/
increment count
Area start address
1/2 x x x x
1 1 4
Specifies the check processing to perform.
S: Subtraction (The number of overwrites can be set to any value up to 16,700,000 overwrites.)
(See note.)
L: Addition (The overwrite limit is always 100,000 overwrites.)
Specifies the Read/Write Head with which to communicate.
1: Read/Write Head 1
2: Read/Write Head 2
Specifies the first address of the overwrite control area as a four-digit hexadecimal number.
Specifiable range: @@@0H to @@@5H or @@@8H to @@@DH
Specifies the number of counts to update the overwrite count as a two-digit hexadecimal number.
Specifiable range: 00H to FFH (The overwrite could will only be checked if 00H is specified.)
Refer to Data Carrier Service Life Detection for details.
p.65
Terminator
FCS
5 x x * C R
2 2
Indicates the results of command execution.
75: Normal end
76: Data error warning
Refer to End Codes for more information.
p.135
FCS
Terminator
x x x x * CR
2 2
2
Section 5
Communications
RFID System
119
Operation Manual