LAARS Heating Systems
Page 40
Notes
Map Descriptor Name
BACnet
Data Type
BACnet
Object ID Read/Write
Modbus
Address Type
R/W
49
U16
Read
History - DHW Pump Cycles
AI
49
Read
50
U16
Read
History - System Pump Cycles
AI
50
Read
51
S16
Read
History - Average Boiler Outlet Temperature
AI
51
Read
52
S16
Read
History - Maximum Boiler Outlet Temperature
AI
52
Read
53
S16
Read
History - Minimum Boiler Outlet Temperature
AI
53
Read
54
S16
Read
History - Boiler Average Firing Temperature
AI
54
Read
55
U16
Read
History - Boiler Maximum Firing Time
AI
55
Read
56
U16
Read
History - Boiler Minimum Firing Time
AI
56
Read
64
S16
Read
Modulation sensor
AI
64
Read
0 = None
1 = Outlet
2 = DHW
3 = System
4 = Inlet
5 = Flue
6 = System Return
65
U16
Read
Lead Lag (Cascade) active service
AI
65
Read
66
U16
Read
Lag 1 State
AI
66
Read
0 = Not Present
1 = Not Available
2 = Available
3 = Running
4 = Locked Out
67
U16
Read
Lag 1 Firing Rate
AI
67
Read
Current firing rate (0-100%)
68
U16
Read
Lag 2 State
AI
68
Read
0 = Not Present
1 = Not Available
2 = Available
3 = Running
4 = Locked Out
69
U16
Read
Lag 2 Firing Rate
AI
69
Read
Current firing rate (0-100%)
70
U16
Read
Lag 3 State
AI
70
Read
0 = Not Present
1 = Not Available
2 = Available
3 = Running
4 = Locked Out
71
U16
Read
Lag 3 Firing Rate
AI
71
Read
Current firing rate (0-100%)
72
U16
Read
Lag 4 State
AI
72
Read
0 = Not Present
1 = Not Available
2 = Available
3 = Running
4 = Locked Out
73
U16
Read
Lag 4 Firing Rate
AI
73
Read
Current firing rate (0-100%)
74
U16
Read
Lag 5 State
AI
74
Read
0 = Not Present
1 = Not Available
2 = Available
3 = Running
4 = Locked Out
75
U16
Read
Lag 5 Firing Rate
AI
75
Read
Ccrrent firing rate (0-100%)
76
U16
Read
Lag 6 State
AI
76
Read
0 = Not Present
1 = Not Available
2 = Available
3 = Running
4 = Locked Out
77
U16
Read
Lag 6 Firing Rate
AI
77
Read
Ccrrent firing rate (0-100%)
78
U16
Read
Lag 7 State
AI
78
Read
0 = Not Present
1 = Not Available
2 = Available
3 = Running
4 = Locked Out
79
U16
Read
Lag 7 Firing Rate
AI
79
Read
Current firing rate (0-100%)
80
U16
Read
Lead 0 State
AI
80
Read
0 = Not Present
1 = Not Available
2 = Available
3 = Running
4 = Locked Out
81
U16
Read
Lead 0 Firing Rate
AI
81
Read
Current firing rate (0-100%)
82
S16
Read
Lead Firing Rate
AI
82
Read
Current firing rate of the Cascade Lead (0-100%)
83
U16
Read
Active CH Setpoint
AI
83
Read
0=None
5 = Start
24 = Error Block
160 = Standby
165 = Check Safety Swtich
166 = Run
177 = Prepurge Open
181 = Parameter Block
183 = Lockout
188 = Testmode
194 = Prepurge Closed
195 = Wait for HIS Free
196 = HIS Preheat/Prespark
200 = Verify Primary SF
217 = interpurge
241 = Postpurge
Burner Status 1
AI
84
Read
Read
U16
84
7.E Modbus and BACnet memory displays (continued)