Table of Contents
Advertisement
Communications Commands and Responses
2) Polling Single Auto Write (PW)
Immediately after receiving the Polling Single Auto Write Command, the Controller returns a re-
sponse indicating the acceptance of the command and waits for a Tag to enter the communica-
tions area of the Antenna. Then it writes data to the entering Tag. The host can inquire of the
Controller the results of communications processing using a subcommand.
Read verification processing is performed for this command and so it is not necessary to per-
form it again.
Command Frame Structure
STX Node No. Command
1
2
Data type
First write page
No. of write pages
Write data
Response Frame Structure
STX
Node No.
1
2
Response code
Data
First write
code
type
page
"PW"
2
1
2
Specifies whether the read data is represented in ASCII or HEX.
A: ASCII code
H: HEX code
For details, refer to 5-6 Data Type.
Specifies the first address for writing data to Tags in HEX.
Specifiable range: 00h to 0Ah, FFh
(FFh can be specified only when using Philips' block 4 as user memory. For details,
refer to 2-5 Tag Memory Map.)
Specifies the number of pages to which data is written in HEX.
Setting range: 01h to 0Ch
Indicates data to be written to the Tag. The number of characters of the data is as
follows:
ASCII code: No. of write pages x 4
HEX code: No. of write pages x 8
Retry
Command
Response
flag
code
code
"PW"
"74"
1
2
2
74: Command received.
For other response codes, refer to 5-10 Response Code List.
Note: Philips' block 4 can be used as user memory with Controller software ver-
sions 1.5 or later. The software version can be read with the Version Com-
mand (VS).
No. of
Write data
write
pages
2
Specified number
ETX BCC
1
1
Section 5-3
ETX BCC
1
1
5-15
Advertisement
Table of Contents
