Output Of Auxiliary Functions - Siemens SINUMERIK 840D sl Programming Manual

Motion synchronous actions
10.4 Actions in synchronized actions
10.4.2

Output of auxiliary functions

Function
Output timing
Auxiliary functions are output directly in the synchronized action at the output time of the
action. The output timing defined in the machine data for auxiliary functions is not active.
The output timing is given when the condition is fulfilled.
Example:
Switch on coolant at a specific axis position:
WHEN $AA_IM[X]>=15 DO M07 POS[X]=20 FA[X]=250
Permitted keywords in non-modal synchronized actions (no modal ID)
Auxiliary functions in non-modal synchronized actions (no modal ID) can only be
programmed with the WHEN or EVERY keywords.
Note
The following auxiliary functions are not permitted in synchronized actions:
• M0, M1, M2, M17, M30: Program stop/end (M2, M17, M30 possible for technology cycle)
• M functions for tool change set with M6 or via machine data
Example
Program code
WHEN $AA_IW[Q1]>5 DO M172 H510
666
Comments
; If the actual value of the Q1 axis exceeds
5 mm, output help functions M172 and H510
at the PLC.
Programming Manual, 06/2009, 6FC5398-2BP20-0BA0
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