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Siemens RDF302 Basic documentation CE1P3079en
Smart Infrastructure 2020-12-01
Read Write
Object No.
Object
Address (Decimal)
Register
Length
Read Only (RO) or Read/Write (R/W)
Functioncode(HEX)
0x03
---Read Holding Registers
0x04
---Read Input Registers
0x06
---Write Single Register
0x10
---Write Multiple Registers
MutiBytes Access Group
Special Process
Default
Data Type
(Decimal)
100 = High Fan
17 Room
Temperature:
Comfort setpoint
0103 1 R/W 0x03 0x06 2 x50
5 ... 40 °C
18 Outside
temperature
0104 1 R/W 0x03 0x06 2 x50
0 ... 49 °C
19 Room operating
mode: Window
state
0105 1 R/W 0x03 0x06 2 - Close
0 = Close (default)
1 = Open
20 Enable electric
heater
0106 1 R/W 0x03 0x06 2 - Enable
0 = Disable
1 = Enable
21 Heating/cooling
changeover
0107 1 R/W 0x03 0x06 2 - heating 0 = cooling,
1 = heating
22 Button lock
command
0108 1 R/W 0x03 0x06 2 - Unlock
4 = Lock all buttons
3 = Lock operating button
only
2 = Lock fan button only
1 = Lock buttons (+ & -)
only.
0 = Unlock
23
Application
Plant type 0109 1 R/W 0x03 0x06 2 - NONE
0=NONE
1=2P
2=2P3P
3=2PEL
4=4P
24
Alarm
descriptions
Fault text 1 0200…
0209
10 R/W 0x03 0x10 - Condensation
in room
len <= 20
25 Fault text 2 0300…
0309
10 R/W 0x03 0x10 - Fault input 1
len <= 20
26 Fault text 3 0400…
0409
10 R/W 0x03 0x10 - Fault input 2
len <= 20
27 Fault text 4 0500…
0509
10 R/W 0x03 0x10 - Filter dirty
len <= 20
28
Parameter table
P01 0001 1 R/W 0x03 0x06 - -
When 2-pipe
1:= Cooling
only
When 4-pipe
4:= Automatic
0:= Heating only
1:= Cooling only
2:= H/C changeover manual
3:= H/C changeover auto
4:= Heating and Cooling
29 P02 0002 1 R/W 0x03 0x06 - - 1
Communication unit / time
prog unit:
1:= Comf - Protection
2:= Comf - Eco - Prot
30 P04 0004 1 R/W 0x03 0x06 3 - °C (0)
°C := Degrees Celsius
°F := Degrees Fahrenheit
31 P05 0005 1 R/W 0x03 0x06 3 x50 0 K
– 3 ... 3 K