Beeper Off CR-LF Ack

If the scanner receives an unknown or improperly formatted code, or if the required parameters are missing or out-of-range, it sends a NAK (15H) Code.

Command

Function

 

 

STX ESC PC ETX

Enable I 2 of 5 with check digit

 

 

STX ESC PD12 ETX

Set I 2 of 5 minimum length to 12

 

 

STX ESC PE14 ETX

Set I 2 of 5 maximum length to 12

 

 

STX ESC KB31323334 ETX

Set Preamble to ‘1234’

 

 

STX ESC LB61626364

Set Postamble to ‘abcd’

 

 

Serial Commands to Use with Caution

Some of the commands in this manual should not be used as serial commands because of the consequences they produce. All PSC scan- ners use the same hardware components to implement both serial communication and wand emulation. This means that all serial com- munication functions are disabled during wand emulation, and vice versa. Because of this, issuing any of the commands in Table 5 causes the scanner to enter its Wand Emulation mode, thereby disabling serial communication.

CB

CC

Wand Emulation, Code 39 Output

Wand Emulation, Same Code Output

Furthermore, because the scanner acts upon a command and then sends ACK or NAK, neither or these codes will be transmitted in response to any of the above commands. In Table 5 only the com- mand letters are listed; the complete command is prefixed with STX ESC, and suffixed with ETX. Because it is not possible to set (via serial command) two Wand Emulation parameters (emulation speed and polarity, for example), scanners to be used in Wand Emulation envi- ronments must be programmed by scanning labels from this manual.

32

User’s / Programming Guide

Page 40
Image 40
Datalogic Scanning DS2200 SH2348, DS1100 SH2347 Beeper Off CR-LF Ack, Command Function, Enable I 2 of 5 with check digit