User's Manual

52
DISPLAY BOARD SCH0372AR1
DESCRIPTION
The MIZAR display board contains the HMI (human machine interface) of the equipment composed by a
alphanumeric 2 rows x 16 columns displayand a keys series, a connector for collecting and sending datas
towards the equipment mother-board and its thinking heart made by a Flash microcontroller.
The board is able of reading 8 analogic signals coming from mother-board. These are only bufferized on the
board and therefore their conditioning is made on the mother-board.
The remaining digital input and output signals are conneted directly to the micro, where is necessary some
interverntion speed, or are multiplexed on shift register where the speed is less important.
The board moreover provide the remotability to the equipment by an asyncronous serial, configurable as
RS232 or RS485 simply connecting the output connector to one of the two serial connectors present on the
display board.
SCH0372AR1 Top layer Component layout
SCH0372AR1 Bottom layer Component layout