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Introduction
Programming Commands
• • • •
There are four programming modes available for model
8034 which are Jarltech mode, ESC/POS mode, UTC
standard mode and UTC w/pass through mode. In this
Chapter, we will always use Jarltech mode as an example
and the command codes for other modes, please refer to
Appendix II. For multi-languages, please refer to
Appendx III and IV for details.
The basic function of the 8034 display is comparable to
the display programming by your software should be as
easy. You just have to open the COM-port on which the
display has been connected by you. Then, you just send
the character you want the 8034 to display directly to the
COM interface. Please use the following RS232
parameters:
9600 Baud, No Parity, 8 Data Bits, 1 Stop bit
In Qbasic, you would initialize the interface as follows:
OPEN "COMx: 9600, N, 8, DS0" FOR OUTPUT AS #1
(x=number of the COM port you are using for the
display)
And you would print something to the display using the
PRINT command:
PRINT#1, "Hello World!"
In the end, you can close the interface:
CLOSE #1
In other programming languages, the commands for
serial output shall be different, but they will work in a
similar way. For some compilers, you will need an extra
toolbox, that offers you RS232 routines. Please refer to
your compiliers/interpreters manual for more details.
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