2014-
02
62
Commands
Reset (RS)
Command:
This command terminates all active commands. The device settings are reloaded from the
non-volatile memory.
This confirmation is issued for this command (status FFh) instead of a response. The device
resets the hardware and then restarts.
Set multiplexed mode (MM)
Command:
Response:
This command switches multiplex mode on and off. In multiplex mode, the R/W heads are
controlled according to the time multiplex process, i.e. only one R/W head is active. The
procedure minimizes mutual interference between R/W heads, allowing two R/W heads to be
mounted side by side.
Each IDENT channel sends a response in reply to an MM command.
If a R/W head is not connected to a channel, the response telegram receives the status "06h"
(hardware fault) from this channel.
Byte
Type
Bit no.
7
6
5
4
3
2
1
0
Byte 0*
Telegram length, high byte
0
0
0
0
0
0
0
0
Byte 1*
Telegram length, low byte
0
0
0
0
0
1
0
0
Byte 2
Command code (16h)
0
0
0
1
0
1
1
0
Byte 3
Reserved/Channel/Toggle bit
0
0
0
0
0
0
0
<T>
Table 7.10
* this byte is only used with the TCP/IP and MODBUS TCP/IP protocol.
Byte
Type
Bit no.
7
6
5
4
3
2
1
0
Byte 0*
Telegram length, high byte
0
0
0
0
0
0
0
0
Byte 1*
Telegram length, low byte
0
0
0
0
0
1
0
1
Byte 2
Command code (9Bh)
1
0
0
1
1
0
1
1
Byte 3
Reserved/Toggle bit
0
0
0
0
0
0
0
<T>
Byte 4
Multiplex mode
0
0
0
0
0
0
0
<T>
Byte
Type
Bit no.
7
6
5
4
3
2
1
0
Byte 0*
Telegram length, high byte
0
0
0
0
0
0
0
0
Byte 1*
Telegram length, low byte
0
0
0
0
0
1
1
0
Byte 2
Command code (9Bh)
1
0
0
1
1
0
1
1
Byte 3
Reserved/Toggle bit
0
0
0
0
0
0
0
<T>
Byte 4
Status
<Status>
Byte 5
Reply counter
<ReplyCounter>
Table 7.11
* this byte is only used with the TCP/IP and MODBUS TCP/IP protocol.
Multiplex mode
<F>='0': Mode off
<F>='1': Mode on
