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Parameterization - Siemens SINUMERIK 840D sl Function Manual

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9.9.12.2

Parameterization

Events
The events that activate the user program are selected on a channel-specific basis using
machine data:
MD20108 $MC_PROG_EVENT_MASK, bit x
Note
MD20108 $MC_PROG_EVENT_MASK is not evaluated in the simulation.
Program
The program (default setting: _N_PROG_EVENT_SPF) must be loaded and cleared.
Default setting
As default setting, when an event occurs, user program _N_CMA_DIR/
_N_PROG_EVENT_SPF is executed.
User-specific setting
If, for an event, another user program is to be executed, the program name must be entered
into the following machine data:
MD11620 $MN_PROG_EVENT_NAME
The program must be in a cycle directory.
The following search path is run through when an event occurs.
1. /_N_CUS_DIR/ (user cycles)
2. /_N_CMA_DIR/ (manufacturer cycles)
3. /_N_CST_DIR/ (standard cycles)
The first program found with the specified name is executed.
Note
● The specified name is checked syntactically as in case of a subprogram name, i.e. the first
two characters must be letters or underscores (no numbers). Prefix (_N_) and suffix (_SPF)
of the program names are added automatically, if not specified.
● The same protection mechanisms that can be activated for cycles (protection levels for
writing, reading, etc.) are activated.
Behavior when starting a user ASUB
The behavior of the function "event-driven program call" upon start of a user ASUB from the
reset channel state can be set channel-specific with the machine data:
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
K1: Mode group, channel, program operation, reset response
9.9 Program operation
549

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