Specifications for Leuze end devices
96
MA 248
i
Leuze electronic
16.9
RFI, RFM, RFU RFID readers (S4 switch position 9)
Specifications for the serial interface
Specifications for Command mode
To activate the Command mode, bit 0 must be set to 1 in control byte 0.
For further information, see chapter 11.1.3 "Command mode", figure 11.2.
Recommended settings
• Input module: dependent on the number of digits of the RFID code that is to be read.
For example, it is advisable to use the input module/output module setting with 24
bytes during the reading of a serial number with 16 characters (+ 2 bytes of status bytes).
• Output module: 4 bytes
If data is to be written, it is advisable to use the setting with 24 bytes or 32 bytes.The RFID
devices expect the telegrams / data in HEX format.
Default parameter
RFM 12,RFM 32 and RFM 62
RFI 32
RFU (via IMRFU)
Baud rate
9600
Data mode
8N1
Handshake
no
Protocol
framing protocol without acknowledgment
Frame
<STX> <Data> <CR> <LF>
Control bit
Meaning
Corresponds to serial
command (ASCII)
0
Version query
v
1)
1)
Not for IMRFU/RFU
1
Activation / deactivation reading gate
+ / -
2
3
4
5
6
7
8
9
10
11
12
13
14
Reset parameters to default values
R
1)
15
Device restart
H