BIS – Binary sequence generator
Block SymbolLicensing group: STANDARD
Function Description
The BIS block generates a binary sequence at the Y output. The sequence is given by the block
parameters. The initial value of the output is given by the Y0 parameter, the internal timer of the
block is set to 0 when the block initializes. The output value is inverted at time instants t1,
t2, , t8
(offon,
onoff). The last switching of
the output occurs at time ,
where
and the output then holds its value. But for the RPT parameter set to on, instead of switching
the output for the last time, the block returns to its initial state, the internal block timer is set
to 0 and the binary sequence is generated repeatedly.
The switching times are internally rounded to the nearest integer multiple of the execution period, which may result in e.g. disappearing of very thin pulses () or melting successive thin pulses into one thick pulse. Therefore it is strongly recommended to use integer multiples of the execution period as the switching times.
Outputs
Y | Logical output of the block | bool |
is | Index of the active time interval | long |
Parameters
Y0 | Initial output value | bool |
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t1 | Switching time 1 [s] 1.0 | double |
t2 | Switching time 2 [s] 2.0 | double |
t3 | Switching time 3 [s] 3.0 | double |
t4 | Switching time 4 [s] 4.0 | double |
t5 | Switching time 5 [s] 5.0 | double |
t6 | Switching time 6 [s] 6.0 | double |
t7 | Switching time 7 [s] 7.0 | double |
t8 | Switching time 8 [s] 8.0 | double |
RPT | Repeating sequence | bool |
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