Installation Manual

Accu-Wave Chapter 3 Wiring Procedures
TN Technologies 3-3
Serial Communications
The gauge provides an RS-485 multi–drop serial interface port. An RS-232 single–drop
is available with the optional RS-232 daughter board Both ports provide independent
access to the measurements and software functions. The ports can be used
simultaneously.
The RS-485 port can communicate with a PC running the Accu-Wave Setup Software, a
PC running a terminal emulation program, TN Technologies’ Hand-Held Terminal, ANSI
terminals, or VT100 terminals.
The RS-232 port can connect directly to a PC serial (COM) port using a serial cable.
Note: In order to communicate with a PC via the RS-485 port, an RS-485 to RS-
232 converter (TN part No. 885960) is required.