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2014-
02
74
Commands
set password mode (PM)
Command:
Response:
The command
PM
activates and deactivates the password mode of the relevant channel. In the
password mode, the password is transferred to the data carrier before each read/write access.
If a data carrier is addressed with the wrong password, then even the other data areas on the
data carrier can no longer be accessed.
Byte
Contents
Bit no.
7
6
5
4
3
2
1
0
Byte 0
1)
Telegram length, high byte
0
0
0
0
0
0
0
0
Byte 1
1)
Telegram length, low byte
0
0
0
0
0
1
0
1
Byte 2
Command code (18h)
0
0
0
1
1
0
0
0
Byte 3
Reserved/Channel/Toggle bit
0
0
0
0
<Channel>
<T>
Byte 4
Password mode
0
0
0
0
0
0
0
<P>
1)
This byte is only used with the TCP/IP and MODBUS TCP/IP protocol.
Byte
Contents
Bit no.
7
6
5
4
3
2
1
0
Byte 0
1)
Telegram length, high byte
0
0
0
0
0
0
0
0
Byte 1
1)
Telegram length, low byte
0
0
0
0
0
1
0
1
Byte 2
Command code (18h)
0
0
0
1
1
0
0
0
Byte 3
Reserved/Channel/Toggle bit
0
0
0
0
<Channel>
<T>
Byte 4
Status
<Status>
1)
This byte is only used with the TCP/IP and MODBUS TCP/IP protocol.
Password mode "off":
<P>=0 (0b) (deactivated)
Password mode "on":
<P>=1 (1b) (activated)