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4-45
SIMATIC 545/555/575 System Manual
Installing 575 System Hardware
4.14 Establishing CPU Communication
The 575 CPU has four serial communication ports and initializes all four
ports to 9600, 7 bits, odd parity, and 1 stop bit on battery-bad powerup.
These communication ports remain in this configuration unless you change
them. Port configuration can be changed using TISOFT 4.3 or later.
Figure 4-24 shows the locations of the communication ports, and the
optional PROFIBUS-DP connection.
Port 1:
RS-232, 25-pin
female
D-connector
(See Figure 4-25)
Series 505
remote I/O port:
9-pin female
D-connector
Ports 2, 3, and 4:
25-pin female
D-connector
(See Figure 4-26)
No battery backup
Watchdog
System failure
Run
Master on bus
PLC good
I/O LINK
SERIAL
PORTS 2, 3, 4
5752104
575
VME CPU
FAULT RELAY
BAT
RUN
WDG
MOB
SYF
PCG
SERIAL PORT 1
PROFIBUS-DP
Fault relay:
9-pin male
D-connector
PROFIBUS-DP port:*
9-pin female
D-connector
*optional
Figure 4-24 5752104 CPU Front Bezel
Default Port
Configurations
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