BA Systems—Petershvilevej 1—DK-3200 Helsinge—http://www.basystems.dk
46
BAS 918S/929S
Manual
Scheme 4, modbus parameter list:
Description
Holding
Register
fcn 3/6
scale
x10
fcn 3/6
scale
x1
Input
Register
fcn 4
scale
x10
fcn 4
scale
x1
Data format
16 bit
signed
integer
16 bit
signed
integer
16 bit
signed
integer
16 bit
signed
integer
Central heating/control
Summer daytime Setpoint
1
x
Vinter daytime Setpoint
2
x
Summer nighttime Setpoint
3
x
Vinter nighttime Setpoint
4
x
Forward temp at
-
20°C outdoor temp.
5
x
Forward temp at
-
15°C outdoor temp.
6
x
Forward temp at
-
10°C outdoor temp.
7
x
Forward temp at
-
5°C outdoor temp.
8
x
Forward temp at 0°C outdoor temp.
9
x
Forward temp at 5°C outdoor temp.
10
x
Forward temp at 10°C outdoor temp.
11
x
Forward temp at 15°C outdoor temp.
12
x
Forward temp at 20°C outdoor temp.
13
x
Night compensation
14
x
Night compensation until this temperature
15
x
No night compensation below this temperature
16
x
Forced displacement
17
x
Forced displacement reset time (seconds)
18
x
Return temperature maximum
19
x
Set state (0:Auto, 1:Stop, 2:Start)
20
x
Return limiter forced setpoint
1
x
Pump state (0:Off,1:On)
2
x
Status (0:Stop, 1:Manuel, 2:Auto run, 3:Auto stop)
3
x
Energy state (0:Auto, 1:Vinter, 2:Force start,
3:Force stop, 4:Day/off, 5:Night/off)
4
x
Central Heating/Values measured
Out door sensor temperature
5
x
Forward temperature
6
x
Not used (returns 0)
7
x
Return temperature
8
x
Motor valve position i percent
9
x
Pump Stop/Start
10
x
