Leuze electronic GmbH + Co. KG
MA 238
i
68
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 data: dependent on the number of digits of the RFID code that is to be read.
For example, it is advisable to use the input data/output data setting with 24 bytes during the reading
of a serial number with 16 characters (+ 2 bytes of status bytes).
• Output data: 8 bytes
The RFID devices expect the telegrams / data in HEX format.
Standard 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
