Siemens Sinumerik 840D sl Programming Manual page 130

Additional functions
4.7 Macro programs
Example of entering a parameter
The value of the parameter contain a sign and a decimal point, independently of the address.
The value of the parameters is always saved as actual value.
Figure 4-23
Execution of macro programs in the Siemens and ISO modes
A called macro program can be called either in the Siemens mode or in the ISO mode. The
language mode in which the program is executed is defined in the first block of the macro
program.
If a PROC <Program name> instruction exists in the first block of a macro program, then an
automatic changeover to the Siemens mode is conducted. If this instruction is missing, the
processing is done in the ISO mode.
The transfer parameters can be saved in local variables by executing a program in the
Siemens mode. In the ISO mode however, it is not possible to store transfer parameters in
local variables.
To read transfer parameters in a macro program executed in the ISO mode, one must first
change over to the Siemens mode with the G290 command.
130
Example of entering an argument
Programming Manual, 06/09, 6FC5398-7BP10-1BA0
ISO Milling