Siemens SINUMERIK 840D sl Function Manual page 758

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2.11 Subroutine call through NC language replacement

Block-search response

The replacement subroutines are executed as in the normal program mode in case of block

search with calculation and SERUPRO.

Boundary condition for replacement subroutines

The following boundary conditions apply to replacement subroutines:

• Replacements in synchronized actions are not permitted

• Replacements in technology cycles are not permitted

• A part program line that contains language constructs to be replaced at the block start

• Spindle-related replacements are executed only if the programmed spindle is the leading

• Only the actions required for the respective replacements can be performed in the

The system does not monitor whether the user actually replaces the respective function

in the replacement cycle. Therefore, if the user fails to implement this correctly, the actual

intended function can be omitted.

in a part program block in which a replacement subroutine is called at the block end, no:

• modular subroutine call should be active

• subroutine return should be programmed

• part program end should be programmed.

Boundaries for macro function

Macros are used to define a character string replacement consisting of text only. This

replacement takes place before processing replacement of NC language commands

described here.

may not be placed in front of any block-wise synchronized actions.

spindle of an active synchronous spindle coupling.

It is detected by the system only if the leading spindle is located in the channel in which

the coupling was closed. If the leading spindle is changed to another channel, then a gear

stage change or a repositioning of this spindle does not lead to the desired call in the

replacement cycle.

Basic logic functions: Mode group, channel, program operation, reset response (K1)

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

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