System Program - ABB Advant Controller 450 User Manual

4.1.8 System Program

3BSE 002 415R701 Rev A
You can divide the software in an Advant Controller 450 into system programs and application
programs (PC programs). A system program provides internal program functions and links
together the application program with the system hardware.
Figure 4-10 presents broadly the interrelation between application programs, system programs
and the hardware. The application programs are built up and edited with an engineering station
with the support of a special program in the Advant Controller.
The execution of the PC program modules in the application program is organized by the
interpreter which also handles certain program amendments, primarily those performed during
execution.
Process I/O data is exchanged with the data base via the software for process communication,
which works in turn directly with the S100 I/O boards and with the communication units on the
MasterFieldbus, Advant Fieldbus 100, and so on.
Pulse counting/frequency measurement, positioning, weighing, free-programmable board,
connection of thyristor converter with analog speed control and communication with
"intelligent" transducers are implemented as direct interaction between PC elements and the
different circuit boards. MasterView 320 mainly works with the data base but receives, for event
printout, information directly from PC elements.
Transverse communication on MasterBus 300 works with the data base and the communication
units. The programs for central operator stations (MasterView 800/1, Advant Station 500 Series,
and so on) work principally with the data base, but can also receive events and data from PC
programs and the process communication.
The printer function receives data directly from the PC element PRINT but can also receive
information from another node via the communication software.
Information Management Stations interact, via GCOM, with the data base and can also receive
data via Data Set. Trend data logs are transmitted cyclically from the controller.
EXCOM works with the data base and can exchange information with another node via,
for example MasterBus 300.
Long-distance communication RCOM and communication via MultiVendor Interface interact
with the data base and the communication units. The protocol from the communication named
above is implemented on the different boards.
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Advant Controller 450 User's Guide
Section 4.1.8 System Program
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