EAO Configurable HMI Panel User Manual
Page 12

Configurable HMI Panel
Installation Guide and User Manual
Page 11 / 16
Byte sequence set LED status
Host request
START_HOST CODE_LEDi LEDByte1 LEDByte2
END
IDENTIFIER
Keyboard response
START_CONTROLLER
CODE_LEDi LEDByte1
LEDByte2
END
IDENTIFIER
Byte sequence get LED status
Host request
START_HOST CODE_LEDo
END
IDENTIFIER
Keyboard response
START_CONTROLLER
CODE_LEDo LEDByte1 LEDByte2
END
IDENTIFIER
Messages of keyboard controller
Error in frame
START_CONTROLLER
ERROR
mirror received bytes
END
IDENTIFIER
Unknown command
START_CONTROLLER
CODE UNKNOWN
mirror command
END
IDENTIFIER
Data frame keyboard
Byte sequence key codes START_CONTROLLER
Modifier Byte
Key code byte1
Key code byte2
Key code byte3
END IDENTIFIER
Table 4 - Data frames serial communication