13
DRAFT
Confi
dential
SIME
Not f
or dis
tribution to other
Modbus
address
Variable description
Ty
p
e
Read /
Wr
it
e
U.M.
Min
value
Max
value
Function
Digital variables
1
Boiler CH Enable/Request
D R/W
-
0
1
2
Boiler DHW Enable
D R/W
-
0
1
3
Boiler Water Filling Function
D R/W
-
0
1
32
Boiler CH Mode
D
R
-
0
1
33
Boiler DHW Mode
D
R
-
0
1
34
Boiler Flame Status
D
R
-
0
1
35
Boiler Alarm Status
D
R
-
0
1
Analog variables
1
Boiler CH Primary Setpoint
A
R/W
0,1°C
20,0
80,0
2
Boiler DHW Primary Setpoint
A
R/W
0,1°C
20,0
80,0
3
Boiler DHW Setpoint
A
R/W
0,1°C
10,0
80,0
4
Outside Temperature MB
A
R/W
0,1°C
-55,0
95,0
5
Boiler CH Curve Slope
A
R/W
0,1
3,0
40,0
6
Boiler CH Curve Displacement
A
R/W
0,1
-5,0
5,0
64
Boiler DHW Water Temperature
A
R
0,1°C
0,0
100,0
65
Boiler Primary Water Temperature
A
R
0,1°C
0,0
100,0
66
Boiler Return Water Temperature
A
R
0,1°C
0,0
100,0
67
Boiler Flue Gas Temperature
A
R
0,1°C
0,0
200,0
68
Boiler Relative Modulation Level
A
R
0,1%
0,0
100,0
69
Boiler Primary Water Pressure
A
R 0,1 bar
0,0
6,0
70
Boiler Outside Temperature
A
R
0,1°C -100,0
100,0
Integer variables
129
Boiler Current Minute
I
R/W
-
0
59
130
Boiler Current Hour
I
R/W
-
0
23
131
Boiler Current Day of the Week
I
R/W
-
1 = Lun 7 = Dom
132
Boiler Current Day of the Month
I
R/W
-
1
31
133
Boiler Current Month
I
R/W
-
1
12
134
Boiler Current Year
I
R/W
-
2000
2200
192
Boiler Alarm Code
I
R
-
0
100
193
Boiler Slave 1 Alarm Code
I
R
-
0
100
194
Boiler Slave 2 Alarm Code
I
R
-
0
100
195
Boiler Slave 3 Alarm Code
I
R
-
0
100
196
Boiler Slave 4 Alarm Code
I
R
-
0
100
197
Boiler Slave 5 Alarm Code
I
R
-
0
100
198
Boiler Slave 6 Alarm Code
I
R
-
0
100
199
Boiler Slave 7 Alarm Code
I
R
-
0
100
200 Boiler Combustion Parameter (Par1)
I
R
-
0
199
201
Boiler Hydraulic Parameter (Par2)
I
R
-
0
199
Request CH zone 1
Enable DHW preparation
Not used
State CH zone 1
State preparation DHW
State presence flame
State presence alarm
Setpoint CH zone 1.
If you receive a value out of range
so the value isn’t received and
the boiler temperature control is
maintained of fixed point or a
temperature curve.
Setpoint CH during ACS preparation
(for PAR 66 installer parameters)
If you receive a value out of range
the value isn’t received and it is used
the boiler value regulation .
Setpoint ACS.
If you receive a value out of range
the value isn’t received and it is used
the boiler value regulation.
External value of temperature by MobBus.
If you receive a value out of range
the value isn’t received. In case of
conflict the boiler will give priority to the value
of the probe connected to it.
Slope of heating curve of zone 1
(it is used instead of the curve set in the boiler).
If you receive a value out of range
the value isn’t received and it is used
the boiler heating curve.
If you receive a value out of range
the value isn’t received and it is used
the boiler heating curve.
Shift value of room zone 1 set
(it is used instead of the shift set in the boiler).
DHW temperature sensor
CH temperature sensor (Delivery)
CH temperature sensor (Return)
Smoke temperature sensor
Modulation level: (0%= minimum boiler power
100%= maximum boiler power)
Pressure value water CH
Outside temperature read from the boiler
through the probe connected to it
Not used
Not used
Not used
Not used
Not used
Not used
Numeric code shown during boiler error
(If Master is in cascade)
Numeric code shown during slave 01 error
Numeric code shown during slave 02 error
Numeric code shown during slave 03 error
Numeric code shown during slave 04 error
Numeric code shown during slave 05 error
Numeric code shown during slave 06 error
Numeric code shown during slave 07 error
PAR 1 value
PAR 2 value
MODBUS BOILER VARIABLES LIST