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Driving the Display
PX 30 and PX 120 Operating Manual
Communication Protocol for packaged data
Data can also be transmitted in a package, speeding up data communication between the
host and the PX-display. Confirmation will only be given for one data package.
Host:
Start byte:
02H
Data (1):
IBM/ASCII-
.
characters:
.
representable
.
characters and
Data (n):
control codes
End byte:
03H
PX 30/120:
positive acknowledgement:
06H (ASCII: ACK)
negative acknowledgement:
15H (ASCII: NAK)
When the display is in monitor mode, control codes can be used to switch between the
IBM and Cyrillic character set (see section entitled "Control Codes" in the Appendix).
HOST
PX 30/120
1 Data Package
2 ACK or NAK
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