Using The Rs232 Port - Bowles UW-7 User Manual

Bowles Corporation

Using the RS232 Port

The UW-7 is equipped with a custom 22-pin female RS-232 port located at the rear of
the instrument. A serial printer or a computer may be connected to the UW 7 via this
port. Printing with the UW-7 means that the LCD contents are sent to the printer
whenever the Print key on the UW-7's front panel is pressed.
Connecting to a Computer
Using a computer in conjunction
with the UW-7 requires the
following steps:
1.
2.
3.
4.
5.
Communications Protocol
Be certain that the power is off on
the UW-7.
Attach the UW-7 to the computer using
a serial interface to USB cable provided by
Bowles Corporation only as shown here.
Turn on the UW-7.
You will need software to
communicate with the UW-7.
Terminal emulation software such
as Windows Hyper Terminal
custom software may be used.
Configure the software's
communications settings for the port
you are using to a baud rate of 1200
bps, 7 data bits, odd parity, 1 stop
bit, and select "hardware
handshaking" if that setting is
available. Refer to your computer
software's documentation or seek
help for the correct procedure.
Communication with the UW-7 is full duplex. There are two commands
that may be sent to the UW-7 in the form of two byte 7-bit ASCII strings:
Escape P returns the current LCD contents as 22 characters including
terminating return and linefeed characters.
Escape T zeros the UW-7 display but returns no characters.
TM
or
UW 7
34