Commands
20
13
-0
3
37
7.3.6
System commands
Change tag (CT)
Command:
Response:
This command tells the read/write head on the relevant channel which tag type to
communicate with. This setting is stored in the non-volatile memory on the unit.
Supported Tag Types
Byte
Content
Bit no.
7
6
5
4
3
2
1
0
Byte 0
Command code (04h)
0
0
0
0
0
1
0
0
Byte 1
Reserved/Ident channel/Toggle
bit
-
-
-
-
<Channel>
<T>
Byte 2
Data carrier type in ASCII
<TagType> (high byte)
Byte 3
Data carrier type in ASCII
<TagType> (low byte)
Byte 4
not used
-
-
-
-
-
-
-
-
Byte 5
not used
-
-
-
-
-
-
-
-
Byte 6
not used
-
-
-
-
-
-
-
-
Byte 7
not used
-
-
-
-
-
-
-
-
Byte
Content
Bit no.
7
6
5
4
3
2
1
0
Byte 0
Command code (04h)
0
0
0
0
0
1
0
0
Byte 1
Reserved/Ident channel/Toggle
bit
-
-
-
-
<Channel>
<T>
Byte 2
Status
<Status>
Byte 3
Reply counter
<ReplyCounter>
Byte 4
not used
-
-
-
-
-
-
-
-
Byte 5
not used
-
-
-
-
-
-
-
-
Byte 6
not used
-
-
-
-
-
-
-
-
Byte 7
not used
-
-
-
-
-
-
-
-
Tag type
P+F
desig-
nation
Chip type
Access
Writable
memory
[bytes]
Read
only code
length
[byte]
Frequency
range
High
byte
Low
byte
'0'
'2'
IPC02
Unique, EM4102 (EM
microelectronic)
Read only code
5
5
125 kHz
'0'
'3'
IPC03
EM4450 (EM
microelectronic), Titan
Read/write read
only code
116
4
125 kHz
'1'
'1'
IPC11
Q5 (Sokymat)
Read/write
5
-
125 kHz
