HEIDENHAIN MANUALPLUS 620 - Page 1280

1280 HEIDENHAIN Technical Manual MANUALplus 620
Using PLC modules to call CHM files created by the OEM:
 PLC Module 9391 is available, with which a PLC error message is displayed,
and in addition an offset is added to the value of the error number (= ONL
Number) in the .PET table in order to generate the actual help number. This
way a group error number can be defined for an (OEM) device in the .PET
table, and the error number (used as an offset) supplied by the device in
case of error then leads to the appropriate help text. This requires an OEM-
specific *.CHM file, which must be indicated in the .PET table (= ONL
Name).
 Additionally, with PLC Module 9390, a help window can be opened directly
by the PLC.
Every possible way of calling your OEM help file offers you the possibility of
showing the entire directory (including HEIDENHAIN help files) in the directory
tree, or just the directory of your OEM help file. This selection is made when
calling the help file. If you enter main.chm as the help file in the call (via PLC
module, *.PET file, soft key or NC error), then the entire directory is shown. If
you enter your OEM help file OEMx.CHM as help file in the call, then only the
directory of your help file is shown.
Files and structure
of the help system
All online help available on a control can be called separately as well as within
the online help system. In order for the call within the entire system to
function, the conditions described below must be followed:
The help system is structured as follows:
 main.chm – Welcome page of the help system
• jh1.chm
• jh2.chm
•...
• oem1.chm
• oem2.chm
• oem3.chm
•...