
6-35
Cabling and Wiring the System
SIMATIC 545/555/575 System Manual
The 575 CPU uses Port 2 for printer operations. You can set the baud rate of
this port using TISOFT. The two available printer handshaking options are
as follows:
• XON/XOFF printer handshaking; see Figure 6-25.
• READY/BUSY printer handshaking; see Figure 6-26.
14
25
13
1
GND
TD
RD
Serial
Printer
DTR
DCD
CTS
RTS
RD
TD
Not required
for all
printers.
RTS
CTS
8
7
5
2
20
4
3
25-Pin, Male
D Connector
Port 2 (RS-232)
Figure 6-25 575 XON/XOFF Printer Handshaking
14
25
13
1
GND
RTS
RD
Serial
Printer
DTR
DCD
CTS
TD
8
7
5
2
20
25-Pin, Male
D Connector
Port 2 (RS-232)
Figure 6-26 575 Ready/Busy Printer Handshaking
575 Printer
Connections
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