Omron V600 User Manual page 88

Section 3
Commands
DATA CHECK (MDC/K)
This command writes or compares the CRC code using the specified check block unit. The CRC code
is calculated from the generated polynomial expression X
Command
Command
Process
code setting
C/K
M D
2 1
Process setting
Processing area number
setting
Check block start
address
Number of check block
bytes
Response
Command
code
End code
×
M D
2
End code
For details on the memory check, refer to Memory Check Function in Data Carrier.
RFID System
86
User's Manual
Processing
area
Check block Number of check
number
start address block bytes
setting
× × × × ×
1
1 4
Specifies the check process.
K: Check code calculation
C: Check code comparison
Always 1.
Specifies the start address of the check block in 4-digit hexadecimal.
Setting range: 0000h to 1FFDh
Specifies the number of bytes in the check block in 2-digit hexadecimal.
Setting range: 00h, 03h to FFh (00 = 256 bytes)
The number of check block bytes is the check code calculation area + 2 bytes.
For details, refer to Memory Check Function in Data Carrier.
p.108
Terminator
×
CR
2 2
Indicates the execution result for the command.
00: Normal completion
76: Data error warning (only during comparison control)
For details on end codes, refer to End code List.
p.95
p.108
16 + X 12
Terminator
×
CR
2 2
+ X 5 + 1.