Intermec Trakker T2090, User Manual

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TRAKKER T2090 Hand-Held Batch Computer User’s Manual
6-36
Start of Message (SOM)
Purpose: SOM is the first character in a message sent to or received from the host
computer through the T2090 computer’s serial port. SOM cannot equal the
same value that is set for EOM. You cannot set SOM to any of these values:
• AFF (ACK) • REQ (ENQ)
• DLE • SEL
• NEG (NAK) • XOFF
• Poll • XON
• RES (EOT)
Note: Before you can enable SOM, you must configure the EOM command.
Syntax: PEdata
An acceptable value for data is any ASCII character. No data will disable SOM.
Default: \x02 (hexadecimal value for STX)
Scan: To disable SOM, scan this bar code:
Disable SOM
*$+PE*
*$+PE*
Or: To set SOM to an ASCII character:
1. Scan this bar code:
Enter Accumulate Mode / Set SOM
*+/$+PE*
*+/$+PE*
2. Scan a bar code for data from the “Full ASCII Charts” in Appendix C.
3. Scan this bar code:
Exit Accumulate Mode
*-/*
*-/*
Example : im_command (“$+PE\x02”,5);
will set SOM to STX.