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Text version of the page
LINEPULS
•
Technical information
LINECOD
www.lika.biz
SSI OUTPUT The position output value of absolute sensors is always positive. Moving the absolute sensor below zero position in decreasing counting direction, output will be equal to the maximum quote -1 (..., 3, 2, 1, 0, qmax.,qmax.-1, qmax.-2,...). BLOCK DIAGRAM OPERATION SYSTEM The first falling edge of the clock signal (1) the position value is stored. After the first rising edge (2) the position is sent starting with the MSB. At every change of the clock signal a bit is sent out until the LSB. The data transmission cycle is terminated by the last falling edge of clock signal (3). After the period Tm the sensor is ready for the next transmission. The time interval between two clock sequence transmissions must be at least 30 µsec. TIMING TRANSMISSION PROTOCOLS Absolute sensors with SSI (Synchronous Serial Interface) produce a“LSB right aligned”transmission protocol. The data word length is 25 bit and unused bits are forced to logic level low (zero).Specifications subject to changes without prior notice