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13.6 Write verified to user memory to the RFID tag (synchronous mode)
The control and status byte must have bit UR and UD set to 1 before the following command
sequence can be started .
13.6.1 Command sequence view
Step 0:
no tag in field
Step 1:
tag in field
Step 2:
tag still in field
Step 3: tag left
the field
Step 4: tag left
the field
Remark
PLC process data output
Byte 1
0 0
0
0
0
0
0
1 AO
0
0
0
0
0
2 WR
0
0
1
1
0
Set WR and RD
to 1 when TP=1 is
detected
3 RD
0
0
1
1
0
4 UR
1
1
1
1
1
Set UR to 1
5 ER
0
0
0
0
0
6 DR
0
0
0
0
0
7 0
0
0
0
0
0
Byte 2 (Data length)
0x00
0x00
0x10
0x10
0x00
Number of User
data bytes to write
Byte 3 (Address-H)
0x00
0x00
0x00
0x00
0x00
Address (H-Byte)
Byte 4 (Address-L)
0x00
0x00
0x02
0x02
0x00
Address (L-Byte)
Byte 5
0x00
0x00
0xAA
0xAA
0x00
User data byte 1
Byte 6
0x00
0x00
0xBB
0xBB
0x00
User data byte 2
. .
…
…
…
…
…
…
Byte 20
0x00
0x00
0x00
0x00
0x00
Step 0:
no tag in field
Step 1:
tag in field
Step 2:
tag still in field
Step 3: tag left
the field
Step 4: tag left
the field
Remark
PLC process data input
Byte 1
0 TP
0
1 (1)
1
0
0
1 AI
0
0
0
0
0
2 WR-RDY 0
0
1
1
0
3 RD-RDY 0
0
1
1
0
4 UD
1
1
1
1
1
5 EF
0
0
0
0
0
6 DR-RDY 0
0
0
0
0
7 Diag
0
0
0
0
0
Byte 2 (Data length)
0x00
0x00
0x10 (2)
0x10
0x00
Number of bytes
read from the RFID
tag
Byte 3 (User data)
0x00
0x00
0xAA
0xAA
0x00
User data byte 1
read
Byte 4 (User data)
0x00
0x00
0xBB
0xBB
0x00
User data byte 2
read
…
…
…
…
…
…
…
Byte 19
0x00
0x00
0x00
0x00
0x00
Byte 20
0x00
0x00
0x00
0x00
0x00
(1) TP bit indicate that the RFID tag is detected by the Read/write head .
(2) Number of User data bytes read from the RFID tag .