Siemens SINUMERIK 840Di Function Manual page 690

Detailed Description
2.11 Subroutine call with M, T, and D functions
• For replacement of the T or D/DL address and the M function for the call of the tool
System variable for the transfer parameter
The programmed values for the transfer to the replacement subroutine can be read using the
following system variable:
System variable
$C_T_PROG
$C_T
$C_TE
$C_TS_PROG
$C_TS
$C_D_PROG
$C_D
$C_DL_PROG
$C_DL
$C_M_PROG
$C_M
$C_ME
Caution
Parameter values
Values passed to the cycle have not yet been executed and must, therefore, be programmed
again in the cycle.
2-154
change program, the same subroutine can be configured in which the function to be
replaced is determined by scanning system variables. The option also exists to configure
different subroutines.
Remarks
TRUE if address T has been programmed
Value of address T (integer)
Address extension of address T
TRUE, if address T was programmed with the tool identifier of type
STRING
Value of address T from tool identifier (string, with tool management only)
TRUE if address D has been programmed
Value of address D
TRUE if address DL has been programmed
Value of address DL
TRUE if M function was programmed for tool change
Value of replaced address M (integer)
There are two different cases:
1. The replacement subroutine for the tool change configured with
MD10718 $MN_M_NO_FCT_CYCLE_PAR was called.
$C_M contains the value
MD10715
$MN_M_NO_FCT_CYCLE[$MN_M_NO_FCT_CYCLE_PAR].
2. In the case of a tool change with M code, only one replacement
subroutine was configured for the T and/or D/DL addresses. If the
M code for the tool change is programmed together with one of the
addresses to be replaced, the value of
MD22560 $MN_TOOL_CHANGE_M_MODE is transferred to the
replacement subroutine.
Address extension of replaced M function
Mode Group, Channel, Program Operation, Reset Response (K1)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0