AERCO Control System (ACS)
APPENDIX G:
Programming Using RS232 Communication
Page 120 of 139
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, New York 10913
11/22/2017
GF-131
Phone: 800-526-0288
OMM-0081_0F
TABLE G-1: ACS Commands
No.
Command
Entry Range
Factory Default
118
Net Boiler 27 Address
Address for Network
Boiler 27
000
119
Net Boiler 28 Address
Address for Network
Boiler 28
000
120
Net Boiler 29 Address
Address for Network
Boiler 29
000
121
Net Boiler 30 Address
Address for Network
Boiler 30
000
122
Net Boiler 31 Address
Address for Network
Boiler 31
000
123
Net Boiler 32 Address
Address for Network
Boiler 32
000
124
Network Baud
0=2400, 1=4800,
2=9600, 3=14400,
4=19200
2 = 9600
125
Network Timeout
5 to 240 sec
60 sec.
126
Password Lo
0 to 255
0
127
Password Hi
0 to 255
0
128
Modbus Control Type
0 = Round-Robin
1 = Broadcast
0 = Round Robin
129
Modbus Pass-Thru
0 = Disabled
1 = Enabled
0 = Disabled
130
Header Temp Deadband
01 to 15°F
05°F
131
Outside Temp Sensor Offset
-10.0°F to 10.0°F
0.0°F
132
Ramp Up %/Min
000 to 300
20
133
Ramp Down %/Min
000 to 300
200
134
Fault Alarm Boilers
No Blr Faults
All Blr faults
No Blr Faults
135
4-20 mA Offset
-1.00 to 1.00 mA
0.0 mA
136
Return Sensor Offset
-10.0 to 10.0°F
0.0°F
137
Load Start Pct
000 to 100
1
138
Load Stop Pct
000 to 100
0
150
I/O Status
00 to 255
Bit 0 = AUX Relay
Bit 1 = Fault Relay
Bit 2 = Sys Start Relay
Bit 3 = Empty
Bit 4 = Setback
Bit 5 = Interlock 2
Bit 6 = Interlock 1
Bit 7 = Empty
151
&
Up
(Reserved For Future Expansion)
Undefined
