Extcall - Siemens SINUMERIK 840D Operator's Manual

6
Program Operating Area

6.9 EXTCALL

6.9 EXTCALL
References
Supplementary conditions The following secondary conditions must be taken into account with
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You can use the EXTCALL command to access files on network
drives from a part program.
See:
PG/ Programming Guide Advanced, Chapter 2
EXTCALL calls:
•
With EXTCALL you can only call files with the MPF or SPF
extension from a network drive.
•
The files and paths must adhere to the following NCK
conventions: max. 25 characters for the name, 3 characters for
the extension name.
•
A program unit is found on a network drive with the EXTCALL
command if
•
The search path points to the network drive with
$SC_EXT_PROG_PATH - or to a directory on it. The
program must be stored there directly; no other files must
be located there. Any subdirectories are not searched.
If you did not specify a drive, the call will be acknowledged
negative.
•
The correct location of the program is specified in the
EXTCALL call itself by means of a fully qualified path that
can also point to a subdirectory of the network drive.
If there is no file extension (MPF, SPF...), the HMI system
will automatically add SPF.
Further information
Direct execution from a network drive is not recommended, as the
stability and dynamic response of all networks cannot be guaranteed.
Recommendation:
Copy the programs from the network onto the compact flash card on
the PCU20 and run them from there.
SINUMERIK 840D/810D Operator's Guide HMI Embedded (BEM) – 03.04 Edition
6
03.04
 Siemens AG, 2004. All rights reserved