User`s manual

89
RFID System
User's Manual
Section 3
V600 Commands
Section 3
Commands
■ Calculation Write (CW)
The ID Tag's memory data and calculation data is calculated in hexadecimal and the result is written to
the ID Tag. If an overflow during addition or underflow during subtraction occurs, the data will not be
written and an error response (end code: 76 = Data check error) will be returned.
Processing specification Specifies the calculation method.
A: Add hexadecimal
S: Subtract hexadecimal
Processing area number
setting
Always 1.
Calculation area start
address
Specifies the start address of the area to be written to in 4-digit hexadecimal.
Setting range: 0000 to FFFF hex
Number of calculation
area bytes
Specifies the number of bytes in the area for calculating data in 2-digit hexadecimal.
Setting range: 01 to 04 hex
Calculation data Specifies the numerical values to be calculated in hexadecimal.
End code Indicates the execution result for the command.
The end code 00 indicates normal completion.
For details on end codes, refer to End code List.
p.104
Calculation data Returns the calculation result data written to the ID Tag.
If an overflow during addition or underflow during subtraction occurs, the end code 76 (data check
error) will be returned. The data prior to the calculation will not be added to the response.
Command
××
CW
××
A/S 1
××
211 4
2
CR
2
Calculation area
start address
Terminator
Specified number of bytes
Calculation data
Number of
calculation
area bytes
Command
code
Data
setting
Processing
area
number
setting
Response
CW
00
22
2
CR
Specified number of bytes
Command
code
Terminator
Calculation data
End code