15- Code 128 Control Codes - Jetmobile BarDIMM Pro Installation And Programmer's Manual

15- Code 128 Control Codes

Code 128 has five non-data special control codes, called FUNCTION CODES, and 2
control codes to switch from one 128 set (A, B or C) to another one. The switching control
codes are used by BarDIMM to force one 128 set. As an example, the string "123456" can
be printed with both sets A, B and C. Inserting a character with ASCII value = 134 at the
beginning of the string will force BarDIMM to use the set B of code 128.
Those special control codes can only be used with the 128 Autoswitch and the
EAN128/UCC128 barcodes.
Note that both Code 128 Autoswitch and EAN 128 analyze the data and optimize the
barcode length by switching automatically between sets A, B and C. EAN128 and UCC-
128 already include the FNC1 code as the first character: you should not send it with the
data.
Special control codes are inserted by passing the following special decimal characters in
the bar code:
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©2004-2006 Jetmobile
BarDIMM Pro & BarDIMM Box – Intelligent Barcode Printing System
128 = SHIFT
129 = FNC 1
130 = FNC 2
131 = FNC 3
132 = FNC 4
133 = CODE A
134 = CODE B
135 = CODE C
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