Product overview
CX9000 / CX901026 Version: 2.6
2.4.3 CX90x0-N030 connections
The CX90x0-N030 system interface features two RS232 interfaces, COM1 and COM2 (9 pin Sub-D plug
connector).
The maximum baud rate on all channels is 115 kBit. The pin assignment for all interfaces is equal and
described below. The interface parameter can be set in the operating system or in the PLC program.
RS232 COM interface (connector):
Table3: Pin assignment COM interface:
PIN Signal Type Description
1 DCD Signal in Data Carrier Detected
2 RxD Signal in Receive Data
3 TxD Signal out Transmit Data
4 DTR Signal out Data Terminal Ready
5 GND Ground Ground
6 DSR Signal in Dataset Ready
7 RTS Signal out Request to Send
8 CTS Signal in Clear to Send
9 RI Signal in Ring Indicator
Note
System interface
The system interface CX90x0-N030 can only be used instead and not simultaneously with
system interface CX90x0-N031.
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