CPU module
Hardware - SIMADYN D
3-11
Edition 03.2001
3
3.2 CPU module PM6
6DD1600-0AK0
The CPU module processes open- and closed-loop tasks which demand an
extremely high computational performance,
or where the program is very
large. They have
•
8 binary inputs,
of which a maximum of 4 can be used to call-up interrupt tasks.
Computational performance:
64/128 MHz, 32/64 bit RISC processor
DRAM
8 MByte (SD), version with 16Mbyte
SRAM
256
KByte
The CPU module permits extremely fast cycle times of 0.1 ms. A typical
application (e.g. control loop) can be configured in approx. 0.5 ms.
The DRAM contains:
•
Program code (is loaded and expanded when the memory module is
initialized)
•
Data memory for the operating system, communications, message buffer,
trace function
The buffered SRAM (using either a battery in the subrack or an external
battery) contains the following data, which are to be saved during and after a
power failure:
•
Operating system error diagnostics ("exception buffer)
•
Max. 1000 process quantities, configured with the function block
SAV
•
Data recorded/traced using the message system or trace function
(can be optionally configured on the SRAM)
The program, running on the CPU module, is configured on a PC using
STEP7/HWConfig and CFC. This is then loaded into an MS5 program
memory module (or MS51).
The program memory module is inserted in the module receptacle provided
on the CPU module. The user program can be loaded in two ways:
•
via a PCMCIA card installed in the PC-programming adapter
(
offline loading
)
•
directly from the PC via a serial communications connection in the
memory module inserted in the CPU module
(
online loading
)
The size of the software to be loaded in the memory module (compressed to
approx. 50% and the size of the available program memory is displayed in
CFC under the following menu item:
Target system \ Load \ Info
Order No.
Description
Performance data
DRAM
SRAM, buffered
Programming
Program size
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