Omron V600 User Manual page 89

OVERWRITE COUNT CONTROL (MDS)
This command is used to control the number of overwrite operations performed by EEPROM Data Car-
riers. This command determines whether the EEPROM overwrite count has been exceeded when the
specified number of overwrites is subtracted from the specified overwrite count control area data.
Command
Processing
area
Command
Mode
number
setting
code Area start address
setting
× ×
M D S 1
2 1 1 4
Mode setting Always S.
Processing area number Always 1.
setting
Area start address Specifies the start address of the overwrite count control area in 4-digit hexadecimal.
Setting range: 0000h to 1FFDh
Decrement count Specifies the number of refresh operations in 2-digit hexadecimal.
Setting range: 00h to FFh (00 = Performs overwrite count check only)
For details, refer to Data Carrier Service Life Detection.
Set the start address between @@@0H and @@@5H or between @@@8H and @@@DH. If the start address is set
between @@@6H and @@@7H or between @@@EH and @@@FH, an address error (error code: 7A(HEX)) will be
returned in the end code.
Response
Command
code
End code Terminator
M D 0 0 C R
2 2 2
End code Indicates the execution result for the command.
00: Normal completion
76: Data error warning
For details on end codes, refer to End code List.
For details on controlling the overwrite count, refer to Data Carrier Service Life Detection.
p.105
Decrement
count Terminator
× × × ×
CR
2
2
p.105
p.95
Section 3
Commands
RFID System
87
User's Manual