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The setting and resetting
of the corresponding
markers
proceeds
as follows:
An M, S or T-function
is programmed
and outputted:
The NC part
of the control
sets the marker
for the correspondiing
code and
II
afterwards
(0 ms or 20 ms delay)
for the strobe signal.
After
the PLC programme
has recoginised
the strobe signal as
logic "1",
the M-S-T-code
must be decoded
in the PLC-part
of the
control
and outputted.
The NC-part
of the control
waits
for the feedback
signal M-S-T-code
complete.
After
the function
has been executed
, the Imarker
corresponding
to the "Feedback
Aultiliary
Function
Complete"
must be set in the PLC-part
of ihe control.
The NC-part
of the control
resets the marker
for the strobe signal (The markers
for the M-S-T-code
remain set until the next output
of a M-S-T-code).
Note:
The timing for the code output
must be implemented
via the PLC.
For an example
of the M-S-T-code
output,
please refer to section
D 3.
27
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