Siemens sinumerik 840d Programming Manual page 97

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The parameters relevant for parameter transfer must be

listed at the beginning of the subprogram with their type

Parameter transfer call-by-value

PROC PROGRAM_NAME(VARIABLE_TYPE1 VARIABLE1,VARIABLE_TYPE2 VARIABLE2,...)

PROC CONTOUR(REAL LENGTH, REAL WIDTH)

Parameter transfer call-by-reference,

identification with vocabulary word VAR

PROC PROGRAM_NAME(VARIABLE_TYPE1 VARIABLE1,VARIABLE_TYPE2 VARIABLE2, ...)

PROC CONTOUR(VAR REAL LENGTH, VAR REAL WIDTH)

Array transfer with call-by-reference,

identification with vocabulary word VAR

PROC PROGRAM_NAME(VAR VARIABLE_TYPE1 ARRAY_NAME1[array size],

VAR VARIABLE_TYPE2 ARRAY_NAME2[array size], VAR VARIABLE_TYPE3

ARRAY_NAME3[array size1, array size2], VAR VARIABLE_TYPE4 ARRAY_NAME4[ ],

VAR VARIABLE_TYPE5 ARRAY_NAME5 [,array size])

PROC PALLET (VAR INT ARRAY[,10])

Additional notes

The definition statement with PROC must be

programmed in a separate NC block. A maximum of

127 parameters can be declared for parameter transfer.

SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Advanced (PGA) − 04.00 Edition

2.3 Subprograms with parameter transfer

Subprograms, Macros

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