Matrix Orbital PK202-25 - Manual (Page 39)

Table 21: Example of an ASCII Table
The letter A has a value of 65 Decimal or 41 Hex
The letter A has a value of 97 Decimal or 61 Hex
The number 0 has a value of 48 Decimal or 30 Hex
The number 9 has a value of 57 Decimal or 39 Hex
This gives rise to the possibility of confusion when parameters are being set on the display. For example,
the GPO ON and OFF commands use a number to indicate which GPO is being controlled. We’re told
that acceptable values are 1 to 6. All such parameters must use numeric values (i.e., the actual byte
values). If we send the ASCII number 0 by mistake it will actually give the value 48 decimal (30 hex) to the
parameter, which is wrong.
In the tables given in the following sections ASCII characters are shown as ‘A’, with single quotes.
8.4 Text Commands
Syntax in the tables below are given in hex, decimal, and decimal with ASCII.
Table 22: Text Commands
Command Syntax Default Notes
Auto line wrap on FE 43
254 67
254 ’C’
On
R
Enables line
wrapping (not
word wrap).
Auto line wrap off FE 44
254 68
254 ’D’
On
R
Disables line
wrapping.
Auto scroll on FE 51
254 81
254 ’Q’
Off
R
Enables scroll at
bottom of screen.
Text will push
display up one
line to make room
for new line.
Auto scroll off FE 52
254 82
254 ’R’
Off
R
Disables auto
scroll. Text will
wrap to top left
and overwrite
existing text
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