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Communications Commands and Responses
2) Write (WT)
Command for the use of writing the same data to plural Tags.
Read verification processing is performed for this command and so it is not necessary to per-
form it again.
Command Frame Structure
Node No. Command
STX
1
2
Communications
Data type
First write page
No. of write pages
Write data
Tag Number setting
Response Frame Structure
STX Node No.
1
2
Response code
No. of Tags written
5-10
Commu-
Data
code
nications
type
"WT"
2
2
Specifies a communications method.
MT: Multi-trigger
MR: Multi-repeat
For details, refer to 5-5 Communications Methods.
Specifies whether the write data is represented in ASCII or HEX.
A: ASCII code
H: HEX code
For details, refer to 5-6 Data Type.
Specifies the first page of the Tag to which data is written in HEX.
Setting 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
Specifies the Tag Number setting.
Setting range: 1 to 7
For details, refer to 5-7 Tag Number Setting.
Retry
Command
Response
flag
code
code
"WT"
"00"
1
2
2
00: Normal completion
For other response codes, refer to 5-10 Response Code List.
Returns number of Tags to which data was written without error.
Does not return signal unless end was normal.
Tag No.
First write
setting
page
1
1
2
No. of
ETX BCC
Tags
written
2
1
No. of write
Write
pages
data
2
Specified number
1
Section 5-3
ETX BCC
1
1
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