See "Enhanced Buffered Write Words (Ew) - Pepperl+Fuchs IC-KP2-2HB21-2V1D Manual

IC-KP2-2HB21-2V1D
Commands
enhanced buffered write words (EW)
Command:
Byte
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
Byte 7
Byte 8
...
Byte N
Table 7.8
Response:
Byte
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
Byte 7
The read/write head repeatedly attempts to write <WordNum> 32-bit words from
the address <WordAddr> until successful. After each successful write, the head
sends the response and then switches to continuous read. The read/write head
then reads the same tag until the tag has left the detection range or a new tag
appears within the detection range. At this point, the read/write head again starts
write attempts.
The status '05h' is only output when a tag leaves the detection range or is not yet
within the detection range.
44
Content
Control byte
Reserved
Command code - 1A
h
Reserved
Word address
Word address
Word count
Word count
Data 00 ... FF
h
Data 00 ... FF
h
Data 00 ... FF
1)
h
1) N = 4 x <WordNum> + 7
Content
Control byte
Reserved
Command code - 1A
h
Reserved
Status
Reply counter
Word count
Word count
Bit no.
7 6 5 4 3
0 0 0 0 0
0 0 0 0 0
0 0 0 1 1
0 0 0 0 0
<WordAddr> (high byte)
<WordAddr> (low byte)
<WordNum> (high byte)
<WordNum> (low byte)
<Data>
<Data>
<Data>
Bit no.
7 6 5 4 3
0 0 0 0 0
0 0 0 0 0
0 0 0 1 1
0 0 0 0 0
<Status>
<ReplyCounter>
<WordNum> (high byte)
<WordNum> (low byte)
2 1 0
D U U
S M S
0 0 0
0 1 0
0 0 0
2 1 0
D U U
S M S
0 0 0
0 1 0
0 0 0