Allen-Bradley 4100-AEC Installation And Setup Manual page 59

Absolute encoder converter
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Strobe Position For Applications Not Using the 1394 or Compact
Tinc (Incremental strobe period = Ts1 + Ts1s1)
Ts1 (Strobe1 active pulse width)
Ts1s1 (Time from Strobe inactive to next active strobe)
Ts1pe (Time from Strobe inactive edge to end of position increments)
Publication 4100-5.2 - March 2000
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Incremental Strobe Timing Period
Parameter
* Position increment must not exceed the maximum Delta Count rate during Ts1s1.
The count rate is equal to the encoder channel frequency times four (4X encode).
The Strobe (Ts1) must be active for a minimum of 5µs, but less than
5ms to be a valid incremental strobe. When the strobe goes inactive,
the AEC interrogates the transducer position and sends any
incremental change from the previous sample. The time (Ts1pe) to
transmit the incremental position is dependent on the size of the
position increment. The position increment must not exceed the
maximum delta count allowed between consecutive incremental
strobe pulses (Tinc). The period (Tinc) of the strobe must be greater
than 1ms, but less than 10ms. This period is constrained by the
incremental strobe active time (Ts1) and the time to send the position
(Ts1pe).
Min
Max
1ms
60ms
0.005ms
10ms
Ts1pe
30000 - Ts1
*Maximum Delta Count

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