Interface description
CX51x0
27
Version: 2.8
5.4.4
RS232 (N030)
The optional N030 interface provides an RS232 interface (X300). The RS232 interface is implemented on a
9-pin D-sub connector.
Fig. 12: RS232 interface X300.
The maximum baud rate on both channels is 115 kbit. The interface parameters are set via the operating
system or from the PLC program.
Table 18: RS232 interface X300, pin assignment.
PIN
Signal
Type
Description
1
-
-
-
2
RxD
Signal in
Receive Data
3
TxD
Signal out
Transmit Data
4
-
-
-
5
GND
Ground
Ground
6
-
-
-
7
RTS
Signal out
Request to Send
8
CTS
Signal in
Clear to Send
9
-
-
-
Limited driver support
The driver manufacturer does not support all standard functions for the interface. As a result, some
applications may not run properly under Windows.
The following API and IOCTLs are not supported:
• SetupComm
• SetCommBreak
• ClearCommBreak
• EscapeCommFunction (no support for parameters SETBREAK and CLR-BREAK)
• IOCTL_SERIAL_XOFF_COUNTER
• IOCTL_SERIAL_LSRMST_INSERT
• IOCTL_SERIAL_SET_BREAK_ON
• IOCTL_SERIAL_SET_BREAK_OFF
Содержание CX51x0
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