MICRO-EPSILON ILD 1420-10, Инструкция по эксплуатации

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Page 65
Set Sensor Parameter
optoNCDT 1420
7.5.2 Digital Output, RS422
7.5.2.1 Values, Ranges
The digital measuring values are being output as unsigned digital values (raw values). 16 resp. 18 bits per value are being transmitted.
Subsequently you can find a compilation of output values and the conversion of the digital value.
Value Length Variables Value range Formula
Distance
(without mas-
tering) 16 bits
x = digital value
[0; <643] SMR reserve
[643; 64877] measuring range
[>64877; 65520] EMR reserve
d [mm] = * MR [mm] x - 1
1
100
102
65520
MR = measuring range [mm] {10/25/50/100/200/500}
d = distance [mm] [-0,01MR; 1,01MR]
Distance
(with master-
ing) 18 bits x = digital value The output range is also coded with 64235
values at 18 bit and shifted with the master
value, see
Fig. 37 . The reserves at SMR
and EMR are coded with 643 values each.
MR = measuring range [mm] {10/25/50/100/200/500}
MP = master position [mm] [0; MR]
MV = master value [mm] [0; 2MR]
d = distance [mm]
d [mm] = * MR [mm] x - 51
1
100
102
65520
MV < MP - 0.5MR: [-0.5MR + MV; MR - MP+ MV]
MV ≥ MP - 0.5MR: [-MP + MV; MR - MP+ MV]
Exposure
time 18 bits x = digital value
[1; 262143]
ET [µs] = x
1
10
ET = exposure time [µs] [0.1; 26214.3]
Intensity 16 bits x = digital value
[0; 65472]
I [%] = x
25
16368
I = intensity [%] [0; 100]