Technology Cycles - Siemens SINUMERIK 840D sl Programming Manual

Motion synchronous actions

10.5 Technology cycles

10.5 Technology cycles
10.5
Function
As an action in synchronized actions, you can invoke programs. These must consist only of
functions that are permissible as actions in synchronized actions. Programs structured in this
way are called technology cycles.
Technology cycles are stored in the control as subprograms.
It is possible to process several technology cycles or actions in parallel in one channel.
Programming
The following rules apply when programming technology cycles:
● End of program is programmed with M02/M17/M30/RET.
● All actions specified in ICYCOF can be processed in one cycle without waiting cycles
● Up to 8 technology cycles can be queried one after another per synchronized action.
● Technology cycles are also possible in synchronized actions that are effective block-for-
● Both IF check structures and GOTO, GOTOF and GOTOB jump instructions can be
● The following applies to blocks with DEF and DEFINE instructions:
714
within one program level.
block (non-modal).
programmed.
– DEF and DEFINE instructions are read over (ignored) into technology cycles.
– These result in alarm messages if the syntax is incorrect or incomplete.
– They can be read over without an alarm message without being set-up themselves.
– They are taken into full consideration with value assignments as part program cycle.
Programming Manual, 06/2009, 6FC5398-2BP20-0BA0
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