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K1: Mode group, channel, program operation, reset response

9.15 Replacing functions by subprograms

Basic Functions

Function Manual, 09/2011, 6FC5397-0BP40-2BA0

641

Example: Replacement of the T function

A detailed example for replacement of the T function can be found in Chapter: "Example: Replacement of an M

function [Page 643]".

9.15.2.3 System variable

General Information

The replacement subprogram is provided with all of the information relevant to the functions programmed in the

block (T or TCA, D or DL, M) via system variables.

Exception

D or DL number is not transferred if:

• MD10719 $MN_T_NO_FCT_CYCLE_MODE, bit0=1

• MD22550 $MC_TOOL_CHANGE_MODE = 1

AND

• D or DL together with T or M function programmed in a block

Parameterization Meaning

MD22550 $MC_TOOL_CHANGE_MODE = 0 Tool change with T function

MD10717 $MN_T_NO_FCT_CYCLE_NAME = "MY_T_CYCLE" Name of the subprogram to

replace the T function

MD10719 $MN_T_NO_FCT_CYCLE_MODE = 0 Call time: End of block

Programming Comment

N110 D1 ; D1

N120 G90 G0 X100 Y100 Z50 ; D1 is active

N130 D2 X110 Z0 T5 ;

;

D1 remains active

The T function is replaced at the end of the

block by

UP call MY_T_CYCLE

D2 is made available to MY_T_CYCLE in a

system variable

CAUTION

The values provided for the replacement subprogram in the system variables are not yet

effective. It is the sole responsibility of the user/machine manufacturer to resolve this by

using the appropriate programming in the replacement subprogram.

Siemens SINUMERIK 828D Function Manual

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