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HH490 User Guide
Replace characters
E4 Replaces up to 15 characters in the output message, without moving the cursor.
Replacement continues until the E5 command is encountered.
Syntax =
E4nnxx
1
xx
2
yy
1
yy
2
...zz
1
zz
2
where nn is the total count of the number of characters in
the list (characters to be replaced plus replacement characters); xx
1
defines
characters to be replaced and xx
2
defines replacement characters, continuing
through zz
1
and zz
2
.
E4 Example: Replace zeros with CRs in barcode data
If the barcode has characters that the host application does not want included,
you can use the E4 command to replace those characters with something else. In
this example, you will replace the zeros in the barcode above with carriage
returns.
Command string: E402300DF10D
E4 is the “Replace characters” command
02 is the total count of characters to be replaced, plus the replacement
characters (0 is replaced by CR, so total characters = 2)
30 is the hex value for 0
0D is the hex value for a CR (the character that will replace the 0)
F1 is the “Send all characters” command
0D is the hex value for a CR
The data is output as:
1234
5678
ABC
<CR>
Stop replacing characters
E5 Terminates character replacement.
Syntax = E5.
