Parameterization - Siemens SINUMERIK 840D sl Function Manual

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Parameterization

The events that activate the user program are selected on a channel-specific basis using

machine data:

MD20108 $MC_PROG_EVENT_MASK, bit x

MD20108 $MC_PROG_EVENT_MASK is not evaluated in the simulation.

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.

● 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

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