JUMO 405101, Описание интерфейса, Страница: 13 / 34

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3 Sensor data
3 Sensor data
3.1 Receive sensor data
The chart states the combination of address and function in the default settings.
3.1.1 Pressure
1. Requesting pressure value (4 bytes from master)
2. Reading pressure value (1 byte from master, 3 bytes from slave)
NOTE!
The first byte returns the command 0x2E (read RAM), Byte 2 and 3 make the 15 bit digital count of the
actual pressure value in common: P[u15] = data [Byte 2; Byte 3].
3.1.2 Temperature
1. Requesting temperature value (4 bytes from master)
2. Reading temperature value (1 byte from master, 3 bytes from slave)
NOTE!
The first byte returns the command 0x2E (read RAM), Byte 2 and 3 make the 15 bit digital count of the
actual pressure value in common: T[u15] = data [Byte 2; Byte 3].
ADDR default 0x28
W (Write): 0  ADDR | W default 0x50
R (Read): 1

ADDR | R default 0x51