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2–4
System Overview CL550
2.3
Configuration
Buffered SRAM for
2.4
Programming
Pentium platform
166 MHz
under VxWorks
32 MB Random
Access Memory
32 MB Flashdisk
remanent data
The control part has been realized through a high-performance PC kernel
under VxWorks, a real time operating system. 1500 K-words have been re-
served in the RAM for the control program's memory size. With an average
command length of six words per instruction, about 250 K-instructions are
programmable. Upon startup, the control program and the data will be co-
pied from the flashdisk into the RAM. Then, the remanent data will be read
from the buffered SRAM and laid over the data in the RAM.
Programmable logic controllers process a program in which the controlling
tasks are described. To do so, special programming languages are used that
can be displayed and printed in several ways.
Elements for Dis-
play + Operation
(ZS550-DP-IBS only)
I/O connection
Profibus-DP V1
I/O connection
InterBus-S
(ZS550-DP-IBS only)
1070 072 263-101 (01.08) GB
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