Technology Cycles - Siemens SINUMERIK 840D sl Programming Manual

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 subroutines.
It is possible to process several technology cycles or actions in parallel in one channel.
Programming
• 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 non-modal synchronized actions.
• Both IF check structures and GOTO, GOTOF and GOTOB jump instructions can be
Blocks with DEF and DEFINE instructions in technology cycles
• DEF and DEFINE instructions are read over into technology cycles
• these still result in alarm messages if the syntax is incorrect or incomplete
• can be read over without an alarm message without being applied themselves
• are taken into full consideration with value assignments as parts program cycles
Parameter transfer
Parameter transfer to technology cycles is possible. Both simple data types which are
transferred as formal "Call by Value" parameters and default settings which take effect when
technology cycles are called up are taken into account. These are:
• Programmed default values when no transfer parameters are programmed.
• To provide default parameters with initial values.
• Transfer non-initialized current parameters with a default value.
Sequence
Technology cycles are started as soon as their conditions have been fulfilled. Each line in a
technology cycle is processed in a separate IPO cycle. Several IPO cycles are required to
execute positioning axes. Other functions are executed in one cycle. In the technology cycle,
blocks are executed in sequence.
Job planning
Programming Manual, 03/2006 Edition, 6FC5398-2BP10-1BA0
within one program level.
programmed.
Motion synchronous actions
10.5 Technology cycles
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