System modules
DFOUT_IO_DigitalFrequency (node number 22)
Inputs_DFOUT / Outputs_DFOUT
13
342
EDBCSXA064 EN 3.2
Phase−displaced signal sequence Track CW rotation CCW rotation
B
B
A
A
Z
Z
A If the input values are
positive, track A leads by 90º.
If the input values are
negative, track A lags by 90º.
B ˘ ˘
CW rotation
ƒ The output signal corresponds to the message of an incremental encoder:
– Track A, B and, if selected, zero track as well as the corresponding inverted tracks
are output with tracks shifted by 90 degrees.
– The levels are TTL compatible.
ƒ The zero track is output in accordance with the function set in C0540.
Note!
The digital frequency output X8 has a system−dependent delay time:
ƒ T
d
= task cycle time (process image cycle) − 1 ms
Example:
If DFOUT_nOut_v is described in a "10 ms task", the signal on X8 has a delay
time T
d
of 9 ms (10 ms − 1 ms)
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