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3.14.2 I/F (Interface) Mode
The Interface (I/F) Mode is a bit-coded byte that you enter in hexadecimal notation.
Table 6 - Interface Mode Options
I/F Mode Option 7 6 5 4 3 2 1 0
RS-232C
(1)
0 0
RS-422/485 0 1
RS-485 2-wire 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
(1) 2 stop bits are implemented by software. This might have influence on performance.
Note: RS-422/485 I/F Modes are supported on XPort-03 with firmware 6.1.0.0 and above.
The following table demonstrates how to build some common Interface Mode settings:
Table 7 - Common Interface Mode Settings
Common I/F Mode Setting Binary Hex
RS-232C, 8-bit, No Parity, 1 stop bit 0100 1100 4C
RS-232C, 7-bit, Even Parity, 1 stop bit 0111 1000 78
3.14.3 Flow
Flow control sets the local handshaking method for stopping serial input/output.
Table 8 - Flow Control Options
Flow Control Option Hex
No flow control 00
XON/XOFF flow control 01
Hardware handshake with RTS/CTS lines (see note) 02
XON/XOFF pass characters to host 05
NET485 User Guide 3-27