Datasheet

Specifications for Leuze end devices
90 MA 248i Leuze electronic
16.3 Bar code reader BCL 22 (S4 switch position 2)
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 bar code that is to be read.
With an 18-digit bar code (+ 2 bytes of status bytes), for example, the input module
with 20 bytes is advisable.
• Output module: 4 bytes
Default parameter BCL 22
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 Reference-code 1 teach-in RT1
3 Reference-code 2 teach-in RT2
4 Automatic configuration of reading task activation / deactivation CA+ / CA-
5 Switching output 1 activation OA1
6 Switching output 2 activation OA2
7 Switching output 1 deactivation OD1
8 Switching output 2 deactivation OD2
9
10
11 Output version of the boot kernel with check sum VB
12 Output version of the decoder program with check sum VK
13 Reset parameters to default values PC20
14 Device restart H
15