MICRO-EPSILON optoNCDT ILR 1191, Инструкция по эксплуатации

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SSI Interface
optoNCDT ILR 1191
7. SSI Interface
Read this chapter, if you work with a ILR 1191-300(03) sensor.
Optionally, the sensor can be equipped with an SSI data interface (SSI = Synchronous Serial Interface). At
the request on a SSI clock generator a distance measurement cycle will start, sending related data which
are present at the shift register bit-by-bit to a controller. Depending on the length and quality of selected data
lines, actual transfer rates may range from 50 kHz to 1 MHz with 25 µs pause time between two bit sequenc-
es.
- The data length is 24 bits plus one validity bit.
- The format can be binary or gray-encoded.
- For parameter settings via the serial interface, the SCx command is available
SCx
x=0...binary, 25 bit, 1 validity bit
x=1...gray, 25 bit, 1 validity bit
Bit sequence:
24 23 .................................. 2 1 0
MSB Bits 1 – 24 distance depending on preset scale factor LSB Error bit