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5-6
Section
Communications Commands
83
Response Frame Structure
STX
Node No. Retry
Flag
Command
code
PR
Response
code
74
ETX BCC
1
2
1
2
2
1
1
Response code
74: Command received.
Refer to 5-12 List of Response Codes for other response codes.
Note Make sure that the specified data is within the memory capacity of the ID Tag.
5-6-7 POLLING AUTOWRITE: PW
When the host sends POLLING AUTOWRITE command to the Controller, the
Controller immediately returns a response to the host indicating the acceptance
of the command. Then the Controller waits for the approaching ID Tag and writes
data to the ID Tag. When the Tag is in the communications area, the host can use
a POLLING subcommand to check the results of the processing of the com-
mand.
Command Frame Structure
STX
Node No.
Command
code
PW
Data
type
Chan-
nel
First write
address
No. of
write bytes
ETX BCC
Write data
Specified
quantity
1
2
2
1
2
2
1
1
1
Data type
Specify whether the data written to the Tag is ASCII or Hex.
A: ASCII code
H: HEX code
Channel
Always 1.
First write address
Specify in Hex the first address to which data is to be written to the Tag.
Setting range: 00h to EFh
No. of write bytes
Specify in Hex the number of bytes to be written to the Tag.
Setting range: 01h to F0h (writing ASCII)
01h to 80h (writing Hex)
Write data
Data written to the ID Tag, which consists of the following characters.
ASCII code: Number of bytes to be written
HEX code: Number of bytes to be written x 2
Response Frame Structure
STX
Node No. Retry
Flag
Command
code
PW
Response
code
74
ETX
BCC
1
2
1
2
2
1
1
Response code
74: Command received.
Refer to 5-12 List of Response Codes for other response codes.
Note Make sure that the specified data is within the memory capacity of the ID Tag.
5-6-8 MEMORY CHECK: MC
This command uses the generating polynomial X
16
+ X
12
+ X
5
+ 1 to calculate
the check block designated by the user and to compare the results with the
check code attached to the check block.
Command Frame Structure
STX
Node No.
Command
code
MC
Chan-
nel
First address
of check
block
No. of bytes in
check block
ETX
BCC
1
2
2
1
2
2
1
1
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