Downloading Commands Using Pc Communications Programs Or Host Terminals - Intermec 4400 User Manual

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Designing Labels and Using Commands
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All characters in a message must be in the same form as the start of text
(<STX>) character. For example, if you include control characters in a message
that begins with the readable protocol/command character <STX>, they are
thrown away. Using readable characters may consume more space and time,
but it has the distinct advantage of displaying everything on the screen in
readable characters.
Downloading Commands Using PC Communications Programs or Host
Terminals
Other ways to download commands to your printer are through a PC
communications program, a terminal emulation program, or from a host
terminal. In any of these situations, the commands you enter through the
keyboard will be sent immediately to the printer in real time. The only
drawback of using these programs is that mistakes are sent to the printer in
real time as well. If you make an error while entering commands, you must
retype the command string.
This inconvenience can be overcome for the most part by keeping your
command strings short. Design your formats as combinations of many short
command strings rather than in one long string.
The following examples demonstrate two ways a format can be downloaded
using PC communications programs.
Breaking the Format Into Separate Lines
This example shows the format divided into separate lines, each of which starts
with the <STX> (start of message) command and ends with the <ETX> (end of
message) command. When the printer receives the <ETX> command, it returns
a positive or negative response, depending on whether it received a valid
message. Since an <ETX> follows each line, only one line needs to be retyped if
the printer detects a mistake.
<STX><ESC>P<ETX>
<STX>E3;F3;<ETX>
<STX>H0;o81,100;f0;c0;d0,16;h1;w1;<ETX>
<STX>H1;o81,120;f0;c0;d0,16;h1;w1;<ETX>
<STX>H2;o81,150;f0;c2;d0,14;h1;w1;<ETX>
<STX>H3;o81,190;f0;c2;d0,16;h1;w1;<ETX>
<STX>B4;o81,0;f0;c0,1;h50;w1;d0,11;i0;p@;<ETX>
<STX>R<ETX>
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