Chapter 8
Innovation Series Water Heaters
GF-128
RS232 Communication
USER MANUAL
OMM-0079_0B
07/21/11 AERCO International, Inc.
•
100 Oritani Dr.
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Blauvelt, NY 10913
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Ph: 800-526-0288
Page
87
of
200
CHAPTER 8. RS232 COMMUNICATION
8.1
INTRODUCTION
The RS232 port on the front panel of the C-More Control Box (Figure 3-1) can be interfaced to a laptop
computer or other suitable terminal using a RS232 adapter cable. RS232 communication can be
accomplished using any “Dumb Terminal” emulation, such as “Hyper Terminal” which is included with
Microsoft Windows. The RS232 communication feature permits viewing or changing of Control Panel
menu options and also provides access to data logs showing Event Time Line, Fault and Sensor log
displays.
8.2
RS232 COMMUNICATION SETUP
Regardless of the terminal emulation utilized, the following guidelines must be adhered to when setting up
the RS232 communication link:
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Baud Rate – The baud rates which can be used with the C-More Control Panel are:
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2400
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4800
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9600 (Default)
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19.2K
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Data Format – The program must be set for: 8 data bits, 1 stop bit, no parity and either
Xon/Xoff or No flow control.
8.3
MENU PROCESSING UTILIZING RS232 COMMUNICATION
Viewing data logs and viewing or changing Control Panel menu options using RS232 communication is
accomplished as follows:
1. Start the emulator software program and ensure that the specified baud rate and data formats have
been entered.
2. Press the Enter key on the laptop. An asterisk (*) prompt should appear.
3. At the prompt, enter the valid RS232 password (jaguar) in lower case letters and press Enter.
4. “Welcome to Aerco” will appear in the laptop or “dumb terminal” display with a listing of the following
available entry choices:
M = Display next Menu
D = Display menu items
N = Display next menu items
Cxx = Change item xx
F = Fault log display
S = Sensor log display
T = Time line display
L = Log off
