R
8
RadioTouch
TM
RTA-RS232 Programming and Operation Guide
Programming
Set Data Flow Control Method
No flow control is the default for the RS232 Interface.
If you are using no flow control, you have completed
the Start-Up of the RS232 Interface.
If you are using full seven-wire hardware
handshaking or three-wire software flow control,
continue with this step.
A.Enter unit configuration mode by pressing and
holding the CONF and ADDR buttons for 5 seconds.
The LED display will begin flashing UC when the unit
has entered unit configuration mode.
B.Press the CONF button repeatedly until the display
shows HS, then press the OK button and the current
flow control setting will be displayed on the right LED
display.
C.Press the right scroll button to select between S
(software flow control), H (hardware handshaking),
and – (no flow control).
When the desired letter is displayed, press the OK
button to confirm this setting. The 3 LEDs around
the display will flash to signal the change has been
made.
Note:
Pressing the left scroll button will display the
current configuration for this mode.
Exit unit configuration mode by pressing and holding
the CONF and ADDR buttons for 5 seconds until the
display starts to sequence.
TX
RX
Press and hold for 5 seconds to enter or exit unit
configuration mode.
TX
RX
Press CONF until the LED
display reads HS.
Then press OK.
A
B
TX
RX
Use the right scroll
button to change the
data flow control
method.
C
