3M Dynapro ET 3170 Terminal Series B, Installation Manual

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3M Touch Systems Proprietary Information
37
Configuring
XON/XOFF
parameter determines how the terminal handles flow control when
communicating with the host.
!
On (Default) : When this parameter is set to On, the terminal can use either
XON and XOFF codes or dedicated control lines for automatic flow control.
When the XON/XOFF parameter is set to On, the ET 3170 terminal handles
Ctrl/Q and Ctrl/S keystrokes specially. It assigns priority to the XON or
XOFF code and transmits it immediately, preceding any other output in the
terminal output buffer. This gives you instantaneous manual control over
data flow from the host.
!
Off: When XON/XOFF is set to Off, the ET 3170 terminal relies solely on
control lines for automatic flow control.
Local Echo determines if keyboard input is echoed to the display as well as sent
to the host computer.
!
Off (Default) : Keyboard input is only sent to the host. The host may or may
not echo the data back to the terminal to be displayed or acted on.
!
On: All keyboard input is echoed to the display and is also sent to the host.
Normally, the host echoes keyboard entries to the terminal, in which case the
Local Echo parameter should be set to Off. Touch panel input is not affected
in any way by the setting of the Local Echo parameter; touch panel input is
never echoed.
Local/Remote controls whether the ET 3170 terminal accepts commands from
the host (remote) or optional keyboard (local).
!
Remote (Default) : Commands received from the host are interpreted
normally. Keyboard input is merely passed on to the host. (This setting is used
in normal operation.)
!
Local: Commands received from the host are temporarily ignored. Instead,
input received from the keyboard is interpreted as if it had come from the
host. This allows you to generate remote commands locally from the
keyboard. All keyboard input is interpreted as coming from the host except
for Setup key input, and input while the Setup, Test, and Communication
Monitor screens are called up.
Important
n
Although all hardware handshake lines are available in an RS-232 configuration, it is
customary to only use software handshaking by enabling the XON/XOFF feature in
Setup.
n
Because RS-422/485 does not use hardware handshaking, XON/XOFF should always
be enabled.
n
The terminal can still transmit XON and XOFF codes when the XON/XOFF parameter
is set to Off, but you must type Ctrl/Q (for XON) or Ctrl/S (for XOFF) on the keyboard
Important
The Local/Remote Setup parameter is the only Setup parameter not stored and recalled
by the Save Setup and Recall Setup commands . See“After the Setup parameters are
saved, they remain selected even after power is turned off. The next time power is turned
on, the terminal will be programmed with the previously saved parameter values.”in this
chapter
for details .