User manual

Microgate MicroGraph LED User Manual Page 56 of 88
3.1 TEXT FRAME (ALPHA PROTOCOL)
Using text records, the MicroGraph LED display board is divided into a certain number of sections
depending on the height of the font used. The text record is completely compatible with the one of the
alphanumerical MicroTAB (LED or PIX) display board.
The font used by the display board can be set manually in the Base Program Setup or using the correct
serial command.
The usable font heights are 3 and the display area of each MicroGraph LED is divided as follows:
ROW A
ROW A
ROW B
ROW A
ROW B
ROW C
As you can see, using the LARGE font height, MicroGraph LED has only one display row. If you use the
MEDIUM font height, the display board is divided into two parts (row A and row B), and finally, using the
SMALL font height, the display board is divided into 3 sections (row A, row B, and row C).
It should be noted that connecting various MicroGraph LED display boards, the rows are not interrupted
between one display board and the next, but, for example, using 3 MicroGraph LED display boards, you can
display strings containing up to 384 LEDs, unlike the 128 LEDs of one single display board.
Another important font feature, besides height, is width. Some fonts can be displayed in proportional as
well as in non-proportional mode.