IFM Ecomat 300 AC1307, Basic Device Manual

Page: 19 / 219

4BFunction
32BData management
5-1
5 Function
5.1 Data management
The controllere consists of different units:
•
The
central processing unit
(CPU) ensures the data transfer between the
sub-systems. It manages the remanent flash memory and the volatile RAM
memory.
•
The
flash memory
is now 1 mbyte large and stores non-volatilely...
•
the system configuration including the AS-i configurations,
• the runtime system (RTS),
•
the PLC program (must explicitly be stored there!),
•
the remanent data.
•
The operating system and the PLC programs run in the
SRAM memory
, now
also 1 mbyte large, after power-on of the unit.
•
The
AS-i masters
each feature a separate microcontroller and communicate
according to the AS-i specification with the connected slave modules on the
AS-i bus.
• By using a
text/graphics display
in the controllere detailed system diagnosis
is possible. The handling of the unit with the four keys is easy to learn.
→ page 8-1, chapter "Operating and display elements"
The bilingual design of the menus and messages simplifies worldwide use of
this device family.
→ page 8-5, chapter "Text/graphics display: switch language"
An intelligent message management generates priority-based diagnostic and
error messages and considerably supports the user during set-up and fault-
finding.
→
chapter 16 "Error messages"
•
The
PLC
is a real-time software core in the central unit. The core cyclically
polls the user program. This user program is created and tested by means of
the software CoDeSys
®
.
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