Portwell ROBO-8122VG2R, User Manual

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ROBO-8122VG2R
Copyright © Portwell 2017 ROBO-8122VG2R User's Guide 70
Feature Description Options
Terminal Type
Emulation: ANSI: Extended ASCII char set. VT100: ASCII char set. VT100+:
Extends VT100 to support color, function keys, etc. VT-UTF8: Uses UTF8
encoding to map Unicode chars onto 1 or more bytes.
★
ANSI, VT100, VT100+, VT-UTF8
Bits per second
Select serial port transmission speed. The speed must be matched on other side.
Long or noisy lines may require lower speeds.
★
115200, 9600, 19200, 38400,
57600
Data bits Data bits
★
8, 7
Parity
A parity bit can be sent with the data bits to detect some transmission errors.
Even: parity bit is 0 if the num of 1’s in the data bits is even.
Odd: parity bit is 0 if num of 1’s in the data bits is odd. Mark: parity bit is always 1.
Space: parity bit is always 0. Mark and Space Parity do not allow for error
detection.
★
None, Even, Odd, Mark, Space
Stop Bits
Stop bits indicate the end of a serial data packet. (A start bit indicates the
beginning). The standard setting is 1 stop bit. Communication with slow devices
may require more than 1 stop bit.
★
1,2
Flow Control
Flow control can prevent data loss from buffer overflow. When sending data, if the
receiving buffers are full, a ‘stop’ signal can be sent to stop the data flow. Once
the buffers are empty, a ‘start’ signal can be sent to re-start the flow. Hardware
flow control uses two wires to send start/stop signals.
★
None, Hardware RTS/CTS