UTC RETAIL 3190 Series, Руководство пользователя

Страница: 7 / 11

© 2016 UTC RETAIL - 7 - 11938027 Rev A
Dimming Feature
<EOT>x 04 DEC 04 HEX
Brightness can be controlled to four levels by using this function. After writing 04h to the display, the next byte sent
will set the brightness. The table below lists the display dimming commands in ASCII, DEC and HEX expression.
Dimming Level ASCII DEC HEX
100 % - 255 FF
60 %
‘
96 60
40 % @ 64 40
20 % Space 32 20
Back Spacing Feature
<BS> 08 DEC 08 HEX
When the backspace command is executed, the write-in position is shifted to the left one position, erasing the
character, if any, in that position. When the write-in position is in the first (read from left to right) position of the
first row, the write-in moves to the last position of the second row. When the write-in is in the first position of the
second row, the write-in moves to the last position of the first row.
Horizontal Tab Feature
<HT> 09 DEC 09 HEX
DC1 Mode (Normal Display Mode)
The write-in position is shifted to the right one position. When the write-in is in the last position of the first row, the
write-in moves to the first position of the second row. When the write-in is in the last position of the second row, the
write-in moves to the first position of the first row.
DC2 Mode (Vertical Scroll Mode)
When the write-in is in the last position of the second row, the characters displayed in the second row are shifted up
to the first row and the write-in moves to the first position of the second row. This action clears the second row.
Line Feeding Feature
<LF> 10 DEC 0A HEX
DC1 Mode (Normal Display Mode)
The write-in moves up or down to another row, staying in the same horizontal position.
DC2 Mode (Vertical Scroll Mode)
When the write-in is in the second row, the characters displayed there are shifted up to the first row, leaving the
write-in at its present position. This action clears the second row. When the write-in is in the first row, the write-in
moves down to the second row.