Ifm-electronic JN2300 Manuel d'utilisateur télécharger pdf (Page 21)

Inclination sensor JN

10.8 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 2081h� The

signed 16-bit value indicates the temperature in 1/10°C�

10.9 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 4008/01h) 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

4008/01h) is reset to 0� The test result is coded in a byte and can be read from the

self-test register (index 4009h)�

00000111 of the 3 least significant bits code the internal X, Y, Z measurement

axes: axis faulty / bit 1: axis functional

10.10 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 Sub-index

Node ID 0x2000 0x00

Baud rate 0x2001 0x00

Quadrant correction 0x2040 0x00

Heating 0x2041 0x00

Teach index 0x2042 0x00

FIR filter angle 0x2043 0x00

Angle calculation 0x2044 0x00

CAN 120 Ohm resistor 0x2045 0x00

Set zero point 0x2046 0x00

Output value 0x2047 0x00

Axis selection for Veff & aPeak 0x2048 0x00

FIR filter for vibration measurement 0x2049 0x00

Measuring range vibration measurement 0x204A 0x00

1 2 ... 16 17 18 19 20 21 22 23

Pas de commentaire

Ifm-electronic JN2300 Manuel d'utilisateur Page 21