8: Channel Mode: Channel Configuration
XPress™ DR Industrial Device Server User Guide
49
Table 8-1 Interface Mode Options
I/F Mode Option
7 6
5
4
3
2
1
0
RS-232C
(1)
0
0
RS-422/485
(1)
0
1
RS-485 2-wire
(1)
1
1
7 Bit
1
0
8 Bit
1
1
No Parity
0
0
Even Parity
1
1
Odd Parity
0
1
1 Stop bit
0
1
2 Stop bit
1
1
(1) The XPress DR requires you to choose the correct setting in the IF mode, and to also set the
front-panel switch for selection of RS-232/RS-485.
The following table demonstrates how to build some common Interface Mode settings:
Table 8-2 Common Interface Mode Settings
Common I/F Mode Setting
Binary
Hex
RS-232C, 8-bit, No Parity, 1 stop bit (1)
0100 1100
4C
RS-232C, 7-bit, Even Parity, 1 stop bit (1)
0111 1000
78
RS-485 2-Wire, 8-bit, No Parity, 1 stop bit (1)
0100 1111
4F
RS-422, 8-bit, Odd Parity, 1 stop bit (1)
0101 1101
5D
(1) The XPress DR requires you to choose the correct setting in the IF mode, and to also set the
front-panel switch for selection of RS-232/RS-485.
Flow
Flow control sets the local handshake method for stopping serial input/output.
Flow (00) ? _
Table 8-3 Flow Control Options
Flow Control Option
Hex
No flow control
00
XON/XOFF flow control
01
Hardware handshake with RTS/CTS lines
02
XON/XOFF pass characters to host
05