SMA1
5.3 Recommended transmission rates
The SSI interface has a frequency of data transmission ranging between 100 kHz
and 1 MHz.
The CLOCK signal and DATA signal comply with the “EIA standard RS-422”.
The clock frequency (baud rate) depends on the length of the cable and must
comply with the technical information reported in the following table:
Cable length
Baud rate
< 50 m
< 400 kHz
< 100 m
< 300 kHz
< 200 m
< 200 kHz
< 400 m
< 100 kHz
The time interval between two Clock sequence transmissions must be at least 16
µs ( Tp > 16 µs).
5.4 Helpful information
•
The position information increases when the sensor moves in the
direction indicated by the arrow in the Figure 1, starting from a min.
value up to a max. value; min. and max. values depend on the specific
MTA1 magnetic scale installed in your application.
MAN SMA1 E 2.9.odt
5 - SSI interface
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