Siemens SINUMERIK 840D sl Function Manual page 530

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2.9 Associated auxiliary functions

Associated auxiliary functions

Associated auxiliary functions are user-defined auxiliary functions that have the same effect

as the corresponding predefined auxiliary functions. For the following predefined auxiliary

functions, user-defined auxiliary functions can be associated:

• M1 (conditional stop).

Requirements

The precondition for association of a user-defined auxiliary function with one of the

predefined auxiliary functions mentioned is parameterization of a user-defined auxiliary

function. Only "M" is allowed as a "type" parameter of the user-defined auxiliary function.

Parameterization

Association of a user-defined auxiliary function with one of the predefined auxiliary functions

mentioned is set in the following machine data:

• MD22254 $MC_AUXFU_ASSOC_M0_VALUE (additional M function for program stop)

• MD22256 $MC_AUXFU_ASSOC_M1_VALUE (additional M function for conditional stop)

Group assignment

The group assignment of an associated user-defined auxiliary function is always the group

assignment of the corresponding predefined auxiliary function.

Associated auxiliary functions can be used in:

• Main program

• Subroutine

Associated auxiliary functions may not be used in synchronized actions.

Basic logic functions: Auxiliary Function Output to PLC (H2)

Function Manual, 11/2006, 6FC5397-0BP10-2BA0

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