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Connection to the Master System (LonWorks Standard)
3
4
5
>5
State:
0:
1:
Network Variable:
nvoState
Description:
Alarm classes, Control mode
Object:
SNVT_state_64 (64 bit)
Bits:
Bit [0 ...63]
Alarm class - danger (A)
Alarm class - critical (A)
Alarm class - low (B)
Alarm class - warning (B)
Current control temperature - room
Current control temperature - outlet
Current control temperature - inlet
Current control humidity - room
Current control humidity - inlet
Remark:
*The bit name order can be reversed in some LON
software tools
Network Variable:
nvoDO
Description:
Digital outputs
Object:
SNVT_state_64 (64 bit)
Bits:
Bit [0 ...63]
Inlet damper
Outlet damper
Fire damper
Inlet Fan - Run
4
Inlet Fan - Stop
Outlet Fan - Run
Outlet Fan - Stop
Cooling - pump
Cooling DX, Stop
Cooling DX, 1st
3St
4St
5St
Not defined
Inactive
Active
Binary:
*Reverse:
0
63
1
62
2
61
3
60
4
59
5
58
6
57
7
56
8
55
9
54
10
53
11
52
12
51
13
50
14
49
15
48
.
.
.
.
.
.
63
0
Binary:
*Reverse:
0
63
1
62
2
61
3
60
59
5
58
6
57
7
56
8
55
9
54
10
53
11
52
12
51
13
50
14
49
15
48
16
47
17
46
18
45
Control units VCS
Cooling DX, 2st
Heat recovery
Water heating - pump
Electric heating, Stop
Electric heating, 1st
Heat pump DO 2
Heat pump DO 1
Electric after-heating, Stop
Electric after-heating, 1st
Request for humidification
Humidifier pump
Gas heating, st1
Gas heating, st2
Gas heating, Mod+
Gas heating, Mod-
Alarm output (A failures)
Alarm output (B failures)
Request for boiler room
Water pre-heating
Electric pre-heating
Remark:
*The bit name order can be reversed in some LON
software tools.
Network Variable:
nvoDI
Description:
Digital Inputs
Object:
SNVT_state_64 (64 bit)
Bits:
Bit [0 ...63]
External input 1
External input 2
19
44
20
43
21
42
22
41
23
40
24
39
25
38
26
37
27
36
28
35
29
34
30
33
31
32
32
31
33
30
34
29
35
28
36
27
37
26
38
25
39
24
40
23
41
22
42
21
43
20
44
19
45
18
46
17
47
16
48
15
49
14
50
13
51
12
52
11
53
10
54
9
55
8
56
7
57
6
58
5
59
4
60
3
61
2
62
1
63
0
Binary:
*Reverse:
0
63
1
62
2
61
.
.
.
.
.
.
.
.
73
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