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Chapter Four
Configuration
Page
39
“None” - The RTS signal from the host is ignored and
the WI-MOD-9-D sets the CTS signal always on.
“CTS/RTS” - input buffer flow control
-
the WI-MOD-9-D will reset the CTS signal when its
input buffer is full
-
presently there is no flow control on the output side; if
the host resets the RTS signal, the WI-MOD-9-D will
still output data
“RS-485” - must be selected if using the RS485 port; the
WI-MOD-9-D resets CTS when it is transmitting data. If
you want full duplex operation of the RS232 port, then
you need to select “None” or “CTS/RTS” - in the RS485
setting (default setting), the RS232 port will operate in
half duplex.
DTR Control
The DTR signal on the RS232 port can be used for different
functions in controlled mode:
“Ignore DTR” - the DTR signal does not perform any
function
“Command Mode” - if the host resets DTR, the WI-
MOD-9-D will go into command mode - when DTR is
activated, the module will revert to on-line mode
“Command Mode, Disconnect” - as above except that
the module will also force a disconnection of the
communications link
“Low Power, Disconnect” - when the host resets DTR,
the module will disconnect the link and go to low power
mode. If you select the “Low Power” option in the
Controlled Mode page, this selection of DTR will be
automatically made.
DCD Control
The DCD signal on the RS232 port can be used to give an
indication of communications link status in controlled mode.
Note that the link is always connected in transparent mode.
“Always On” - the WI-MOD-9-D sets the DCD to be
always on
“Only High When Connected” - the DCD signal will be on when the link is connected and
off when the link is reset
WI-MOD-9-D Configuration
WI-MOD-9-D Configuration