A trigger is a special stored procedure whose execution is not called by the program, nor is it initiated manually, but by an event.
When the step control signal of the trigger is at the "1" or "0" level, the trigger receives the input data. At this time, any change of the input data D will be reflected at the output Q; when E is a non-agreed level The trigger state remains unchanged. Given that it receives information on condition that E has an agreed logic level. Therefore, it is called a level trigger mode trigger, referred to as a level trigger.
Incremental encoders provide speed, direction and relative position feedback by generating a stream of binary pulses proportional to the rotation of a motor or driven shaft. Lander offers both optical and magnetic incremental encoders in 4 mounting options: shafted with coupling, hollow-shaft, hub-shaft or bearingless. Single channel incremental encoders can measure speed which dual channel or quadrature encoders (AB) can interpret direction based on the phase relationship between the 2 channels. Indexed quadrature encoders (ABZ) are also available for homing location are startup.
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