User`s guide

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The configuration file templates SYS_BASCON$COM, SYS_BASCON.HSB,
SYS_CONFIG$PAR and SHUTDOWN$CIN should be merged to the
corresponding old application files SYS_BASCON.COM, SYS_CONFIG.PAR
and SHUTDOWN.CIN to enable new features introduced in newer revisions.
The configuration files are described in the System Configuration manual.
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During the development of the product some errors have been fixed in a way that
may have influence on the old applications that have relied on the error. In
addition, the default behavior in some situations, often related to event and alarm
handling, have been changed. The Revision Compatibility mechanism,
implemented as the RC attribute of the application object (see the System
Objects manual) and the REVISION_COMPATIBILITY function (see the
Programming Language SCIL manual), may be used to keep the old behavior.
In the following sections, the most important revision compatibility switches to be
considered at the upgrade are described. They are listed in the reverse order of the
revision of the old system. For example, if the system is upgraded from 8.4.3 to 9.2,
the sections down to 4.1.3 are relevant.
If the system to be upgraded is running an operating system other than Windows
(Unix or iRMX), please consult our SA-D Support Line for the details of the
upgrade.
4.1.1. Mirroring considerations
If mirroring is used in the system to be upgraded, it is recommended that the
MicroSCADA Pro Hotfix MSH07-001 is applied after the installation of SYS 600
9.2.
If the system works as a mirroring host and any of its images run revision 8.4.5 or
older, the hotfix is mandatory to even make the mirroring work.
If the system to be upgraded is or is going to be a part of a mirroring network, the
compatibility switch "844_COMPATIBLE_MIRRORING" must be set in the
following two cases:
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There is a system running revision 8.4.4 in the network.
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"844_COMPATIBLE_MIRRORING" is set in the other systems of the network.
844_COMPATIBLE_MIRRORING
Mirroring between revision 8.4.4 and any later revision does not work when default
settings are used. When upgrading from 8.4.4, both the host system and the image
system has to be upgraded to make mirroring work again.
Compatibility switch "844_COMPATIBLE_MIRRORING" has been implemented
to make it possible to upgrade systems of the mirroring network one by one.
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SYS 600 9.2SYS 600 9.2
MicroSCADA Pro
Installation and Administration Manual
1MRS756115