Leuze electronic GmbH + Co. KG
MA 238
i
64
16.5 Bar code reader BCL 90, BCL 900i (S4 switch position 5)
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 bar code that is to be read.
With an 18-digit bar code (+ 2 bytes of status bytes), for example, it is advisable to use the 24-byte
setting.
• Output data: 8 bytes
Standard Parameter
BCL 90, BCL 900i
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
Activation / deactivation reading gate
+ / -
2
Configuration mode
11
3
Alignment mode
12
4
Read operation
13
5
6
7
8
9
10
11
12
13
14
Reset parameters to default values
PC20
15
Device restart
H
NOTE
When using the Command mode, make sure that 00H is shown in the data range; otherwise the
device only performs one alignment cycle.