February 2012 16 – 219
16 Loading service packs
16.1 Introduction
Errors in the current HEIDENHAIN NC software are corrected by means of service packs.
Service packs are loaded in addition to the NC software.
The service pack must match the released NC software version.
The latest service pack version includes all changes of earlier versions, i.e. it is sufficient to load
only the service pack with the highest version number.
It is not necessary to convert data (binary to ASCII) and to backup the non-volatile PLC operands.
In addition to loading a service pack, the machine tool builder can update the PLC program or
machine parameters via the control file setup.ini.
Screen display If a service pack is installed on the iTNC 530 HSCI , a corresponding message is shown after the
control has started up (before the Power interrupted message is confirmed).
The machine manufacturer, however, may have covered this message window.
Normally, a service pack must be loaded by or in agreement with the machine tool builder.
If a service pack has already been installed, it will not be possible to install a service pack with a
lower version number. This is checked during the installation of a service pack and a message is
displayed if an error is found.
Sometimes, service packs are included in "full versions", i.e. a service pack is loaded together with
the associated NC software. This involves a conversion of the data from binary to ASCII format
(automatically in the menu logic).
It is possible to downgrade to full software versions.
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