AERCO Control System (ACS)
APPENDIX G:
Programming Using RS232 Communication
11/22/2017
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, New York 10913
Page 115 of 139
OMM-0081_0F
Phone: 800-526-0288
GF-131
G.3 RS232 COMMUNICATION SET-UP
Regardless of the terminal emulation utilized, the following guidelines must be adhered to when
interfacing the ACS to the Terminal device:
RS232 Communication Set-Up
1.
Connect cable leads to the RS-232 connector in the wiring area of the ACS.
2.
Connect the free end of the cable to the COM 1 or COM 2 port on your laptop, or other
suitable terminal device.
3.
Set up the emulator communication link as follows:
a. Set the baud rate to 9600.
b. Set the data format to 8 bits, 1 stop bit, no parity and either Xon/Xoff or No Flow
Control.
4.
Turn on the ACS by pressing the ON/OFF key. Verify that the ON LED lights.
5.
Press the MENU key. Go to the SETUP MENU and enter a valid PASSWORD.
6.
Press the MENU key and go to the RS232 MENU.
7.
Press the ▲ arrow key to display the
RS232 MODE
option.
8.
Press the ▲ or ▼ arrow key to display
NORMAL
. Press the ENTER key to store the
NORMAL
selection
9.
Start the emulator software program.
10.
At the command prompt, enter the password EXACTLY as follows (case-sensitive):
P=gobms
11.
Press Return (<Rtn>) on your terminal.
12.
The setup is now complete. You are ready to begin viewing or changing ACS functions.
G.4 PROGRAMMING PROCEDURE
ACS functions which can be viewed or changed are listed in
Table G-1
along with their
corresponding command numbers. Functions which can only be viewed (such as actual sensor
readings) are marked “Read Only”. Viewing or changing function values is accomplished as
follows:
Programming Procedure
1.
Select the number of the desired command from Table J-1.
2.
To view a parameter, type
?
, followed by the command number and then press return
(<Rtn>). For example, to view command no. 00 (HEADER TEMPERATURE), enter:
?00<Rtn>
The header temperature reading will be displayed. All temperature readings are in °F.
3.
To program (set) a ACS parameter, type @, followed by the command number, an equal
sign, the parameter value and a trailing zero. For example, to set command 05
(SYSTEM OUTSIDE AIR START TEMPERATURE) to 65°F, enter:
@05=650<Rtn>