Advant Controller 450 Product Guide
Chapter 2 Functional Description
2-2
3BSE 015 953R201 Rev B
Application Program Backup
The controller system configuration and the application program is normally created in an off-
line or sometimes an on-line configuration session supported by an engineering station. The work
is basically backed up in the engineering station environment (hard disc, flexible disc or likely).
To restore a RAM which has been cleared by an accident or a fatal error some measures have to
be taken, automatically and manually. In addition to the automatic loading of the system
program, described above under the heading System Program Backup, somebody has to
manually load the application program backup (including the controller system configuration)
using an engineering station.
As an alternative, the Advant Controller 450 can be equipped with an optional flash card of
similar type as the one used for the system program. The flash card is contained with a DUmp of
Application Programs (DUAP) preferably taken while the controller is in the operation mode.
At need, the controller system configuration and the application program is likewise
automatically loaded from its flash card into the controller RAM. No manual intervention
is needed to get into operation after the interruption.
Flash cards are available in different memory-sizes (2, 4 or 10 Mbytes). Select a type that takes
the actual application program.
The system program backup and the application program backup can not be mixed in one single
program card.
Memory Backup Power Supply
The RAM is secured against loss of power for a minimum of four hours (two hours when
redundant processor modules are used) by a backup power supply and battery. This is important
for the configured application program, which is basically not otherwise backed up.
If a longer backup time is desirable, you can use:
•
Additional backup power supply unit SB510 and battery package (doubled backup time)
•
Alternative backup power supply unit SB511 connected to a 24 V or 48 V external battery
system
•
An application program backup (see heading above).
2.1.3 System Clock, External Clock Synchronization
The processor module PM511V is provided with a calendar clock which is backed up by
the same battery used for memory backup. You can set the date and time from the programming
unit or from a local operator station, for example, MasterView 320. A slow, smaller adjustment
in the interval
±
100 s can also be performed with the programming unit. With Advant
Controller 450 connected to MasterNet, as a part in a distributed control system,
the synchronization occurs automatically with other stations via a network with an accuracy
faster than 3 ms.
If extreme synchronization accuracy is required between controllers (in the order of 2 ms) and
synchronization to an external clock, an external minute pulse signal can be connected to all
systems concerned. The supervision module TC520 has a special input for external
synchronization of the calendar clock.
Summary of Contents for Advant Controller 450
Page 6: ...Advant Controller 450 Product Guide Table of Contents iv 3BSE 015 953R201 Rev B...
Page 8: ...Advant Controller 450 Product Guide Table of Contents vi 3BSE 015 953R201 Rev B...
Page 12: ...Advant Controller 450 Product Guide Table of Contents x 3BSE 015 953R201 Rev B...
Page 36: ...Advant Controller 450 Product Guide Chapter 3 Software Components 3 8 3BSE 015 953R201 Rev B...
Page 52: ...Advant Controller 450 Product Guide Chapter 4 Hardware Components 4 16 3BSE 015 953R201 Rev B...
Page 58: ...Advant Controller 450 Product Guide Chapter 5 Mechanical Design 5 6 3BSE 015 953R201 Rev B...
Page 119: ......
Page 120: ...3BSE 015 953R201 Rev B March 2001...
