Datasheet

Specifications for Leuze end devices

Leuze electronic MA 248i 89

TNT 35/7-24V

16.2 Bar code reader BCL 8 (S4 switch position 1)

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 8

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

7 Switching output 1 deactivation OD1

8 System standby SOS

9 System active SON

10 Query reflector polling AR?

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