Using the RS-232 Serial Port
5-40 Force FX-8C Service Manual
Using the RS-232 Serial Port
The RS-232 serial port allows communication between an attached
computer or terminal and the main microcontroller of the generator. This
communication link lets you obtain information regarding calibration
values, power and mode settings, and the alarm number history of the
generator. You can also use the link when calibrating the generator.
Equipment required:
• Phillips screwdriver.
Step 1 – Establish the Communications Link
A. Turn off the generator.
B. On the rear panel of the generator, remove the screws that secure the
metal plate that covers the serial port.
C. Connect a standard DB 9 serial cable to your computer and to the serial
port.
• Pin 2 is the serial output data line.
• Pin 3 is the serial data input line.
• Pin 5 is the reference line.
D. On your computer, enter your communication program. Configure
your computer for 9600 baud, 8 data bits, 1 stop bit, and no parity.
E. Turn on the generator. Information similar to the following is
displayed on your computer:
FX Main
(c) 1995 Valleylab
Gen Model: Force FX
Main F/W Version: #
Feedback F/W Version: #
REM Impedance = Z
where # is the version number of the software for the listed
microcontrollers. Z is a numeric representation of the REM
impedance.
One of the following messages is displayed (with the Keying ENABLED
message) when you activate the generator:
BIPOLAR_REQ
MONO1_CUT
MONO1_COAG
MONO2_CUT
MONO2_COAG
keying ENABLED
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