See "Enhanced Program Special Read Only Code (Ep) - Pepperl+Fuchs IC-KP2-2HB21-2V1D Manual

IC-KP2-2HB21-2V1D
Commands
enhanced program special read only code (EP)
Command:
Byte
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
Byte 7
Byte 8
Byte ...
Byte N
Table 7.15
Response:
Byte
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
Byte 7
The R/W head attempts to write a special read only code until successful. After
each successful write, the head sends the response and then switches to
continuous reading. Then the R/W head reads the same data carrier until it has
left the detection range or a new data carrier appears within the detection range.
The command then starts again with write attempts.
The status '05h' (read/write command) is output when the data carrier leaves the
detection range or if the data carrier is not yet within the detection range when the
command is executed.
68
Content
Control byte
Reserved
Command code - 75
h
Reserved
Reserved
Reserved
Read only code length
Read only code length
ID code 00 ... FF
h
ID code 00 ... FF
h
ID code 00 ... FF
1)
h
1) N = <FixLen> + 7
Content
Control byte
Reserved
Command code - 75
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 1 1 1 0
0 0 0 0 0
0 0 0 0 0
0 0 0 0 0
<FixLen> (high byte)
<FixLen> (low byte)
<IDCode>
<IDCode>
<IDCode>
Bit no.
7 6 5 4 3
0 0 0 0 0
0 0 0 0 0
0 1 1 1 0
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
1 0 1
0 0 0
0 0 0
0 0 0
2 1 0
D U U
S M S
0 0 0
1 0 1
0 0 0