Siemens SINUMERIK 828D Programming Manual page 552

Motion synchronous actions
10.1 Basics
Sequence of execution
Modal synchronized actions that are statically effective are processed in the interpolation
clock cycle in the sequence of their
Non-modal synchronized actions (without ID number) are executed in the programmed
sequence after execution of the modal synchronized actions.
Note
Modal synchronized actions can be protected from modifications or deletions by machine
data settings (→ machinery construction OEM!).
Programming
Syntax
No modal ID
ID=<n> ...
IDS=<n>
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or number (
ID IDS
Significance
The synchronized action is only effective in the automatic mode. It
applies only to the next executable block (block with motion
statement or other machine action), is non-modal.
Example:
WHEN $A_IN[3]==TRUE DO $A_OUTA[4]=10
The synchronized action applies modally in the following blocks and
can be deactivated by
programming a new synchronized action with the same ID.
The synchronized actions active in the
end.
ID synchronized actions are only effective in the automatic mode.
Value range for <n>:
Example:
ID=2 EVERY $A_IN[1]==1 DO POS[X]=0
The static synchronized actions act modally in all modes. They even
remain active beyond the end of the program and can be activated
directly after Power On using an ASUB. This means that it is
possible to activate actions that should run in the NC independent of
the selected operating mode.
Value range for <n>:
Example:
IDS=1 EVERY $A_IN[1]==1 DO POS[X]=100
or
ID=<n> IDS=<n>
or can be overwritten by
CANCEL(<n>)
block delay the program
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Programming Manual, 07/2010, 6FC5398-2BP40-0BA0
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