Settings dip switches rs485 – BECKHOFF CX1000 User Manual
Page 24
Product Overview
22
Embedded PC
CX1000-N005 connections
The system interface CX1000-N005 contains two RS422, RS485 interfaces, COM2 and COM3 (9 pin Sub-D plug
connector).
The maximum baud rate on both channels is 115 kBit.
COM interface (plug):
Pin assignment of the COM interface:
PIN
Signal
Type
Description
2
TxD+
Data-Out +
Transmit 422
3
RxD+
Data-In +
Receive 422
5
GND
Ground
Ground
6
VCC
VCC
+5V
7
TxD-
Data-Out -
Transmit 422
8
RxD-
Data-In -
Receive 422
For RS 485 Pin 2 and 3 ( Data +) as well as Pin7 and 8 (Data -) have to be connected.
The pins not listed are not used.
Settings DIP switches RS485:
RS485 without Echo, End-Point ( Terminated) DEFAULT SETTING
DIP
Status
Function
1
off
Echo on
2
on
Echo off
3
on
Auto send on
4
off
Always send on
5
on
Auto receive on
6
off
Always receive on
7
on
Term on
8
on
Term on
RS485 with Echo, End-Point ( Terminated)
DIP
Status
Function
1
on
Echo on
2
off
Echo off
3
on
Auto send on
4
off
Always send on
5
off
Auto receive on
6
on
Always receive on
7
on
Term on
8
on
Term on