UK
Inclination sensor JN
19
10.9 MEMS measuring cell temperature (0x2081)
The temperature of the measuring cell is determined every 200 ms and updated
in the protocol at "informative". It can be read via access to the index 0x2081 The
signed 16-bit value indicates the temperature in °C.
10.10 MEMS self-test (0x4008 / 0x4009)
To check the function of the measurement axes a self-test of the measuring cell
can be carried out.
The MEMS self-test (index 4008/1) has to be activated by writing the value 1. The
self-test takes about 2 s; when the self-test has ended, the flag (index 4008/1)
is reset to 0. The test result is coded in a byte and can be read from the self-test
register (index 4009h).
00000110 → value of the X, Y, Z measurement axes
Bit 0: axis faulty / bit 1: axis functional
10.11 Programming key (0x3000)
The sensor can convert the parameter setting unambiguously into a Base64-coded
key.
By means of this key sensors with the same parameter setting can be duplicated
in an easy way.
The programming key can be read from and written to index 3000h. To ensure
that only valid keys are accepted by the firmware a 2-byte checksum (CRC) is
calculated and added to the end of the key.
The following parameters are coded by the key
Parameter
Index
Device address (ECU)
0x2000
Baud rate
0x2001
Quadrant correction
0x2040
Heating
0x2041
Teach index
0x2042
FIR filter angle
0x2043
Angle calculation
0x2044
CAN 120 Ohm resistor
0x2045
Set zero point
0x2046
Output value
0x2047
The default setting of the programming key is:
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