Execute External Subroutine (Extcall) - Siemens SINUMERIK 840D sl Programming Manual

Flexible NC programming
1.25 Subprogram technique

1.25.3.10 Execute external subroutine (EXTCALL)

Function
EXTCALL can be used to reload a program from the HMI in "Execution from external source"
mode. All programs that can be accessed via the directory structure of HMI can be reloaded
and run.
Syntax
EXTCALL("<path/program name>")
Significance
EXTCALL:
<path/program name>:
Note
External subprograms must not contain jump statements such as GOTOF, GOTOB, CASE,
FOR, LOOP, WHILE, or REPEAT.
IF-ELSE-ENDIF constructions are possible.
Subprogram calls and nested EXTCALL calls may be used.
220
Command for calling an external subprogram.
Constant/variable of type STRING
An absolute (or relative) path or a program name can be
specified.
The program name is written with/without the leading _N_
and without an extension. An extension can be attached
to the program name using the <_> character.
Example:
"/_N_WKS_DIR/_N_WELLE_WPD/_N_WELLE_SPF"
or
"SHAFT"
Programming Manual, 06/2009, 6FC5398-2BP20-0BA0
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