See "Change Password (Pc) - Pepperl+Fuchs IDENTControl IC-KP-B5-V23 Manual

IC-KP-B5-V23
Commands
Change password (PC)
Command:
Byte
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
Byte 7
Byte 8
Byte 9
Response:
Byte
Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
Byte 5
Byte 6
Byte 7
The command PC changes the password in a tag. Enter the old and then the new
password <PSW> here. If the password has been successfully written, the
password in the read/write head also changes and the set password command
is no longer required. The password of the IPC03 can also be changed if the
password mode is deactivated.
48
Content
Command code (41h)
Reserved/Ident channel/Toggle bit
Old password 00h ... FFh
Old password 00h ... FFh
Old password 00h ... FFh
Old password 00h ... FFh
New password 00h ... FFh
New password 00h ... FFh
New password 00h ... FFh
New password 00h ... FFh
Content
Command code (41h)
Reserved/Ident channel/Toggle bit
Status
Reply counter
not used
not used
not used
not used
Bit no.
7 6 5 4 3
0 1 0 0 0
- - - - <Channel>
<PSW> (byte 3)
<PSW> (byte 2)
<PSW> (byte 1)
<PSW> (byte 0)
<PSW> (byte 3)
<PSW> (byte 2)
<PSW> (byte 1)
<PSW> (byte 0)
Bit no.
7 6 5 4 3
0 1 0 0 0
- - - - <Channel>
<Status>
<ReplyCounter>
- - - - -
- - - - -
- - - - -
- - - - -
2 1 0
0 0 1
<T>
2 1 0
0 0 1
<T>
- - -
- - -
- - -
- - -