User Manual
Table Of Contents
- 1. About this document
- 2. Summary
- 3. Functions
- 3.1 Temperature control
- 3.2 Operating modes
- 3.3 Room temperature setpoint
- 3.4 Applications overview
- 3.5 Additional functions
- 3.6 Control sequences
- 3.7 Control outputs
- 3.8 Fan control
- 3.9 Multifunctional input, digital input
- 3.10 Handling faults
- 3.11 Modbus RTU mode
- 3.12 Communication objects
- 3.13 Control parameters
- 4. Handling
- 5. Connection
- 6. Mechanical design
- 7. Technical data
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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)
54 P49 0049 1 R/W 0x03 0x06 6 - 1 min.
1...20 minutes
55 P50 0050 1 R/W 0x03 0x06 6 - OFF
0 = OFF: Not active
1…5 min: Active with
selected duration
56 P51 0051 1 R/W 0x03 0x06 6 x50 OFF
9=OFF, 10..50 °C
57 P52 0052 1 R/W 0x03 0x06 6 - 1
0:= Disabled
1:= Enabled
2:= Heating only
3:= Cooling only
58 P53 0053 1 R/W 0x03 0x06 6 - 3-speed
1:= 1-speed
2:= 3-speed
59 P54 0054 1 R/W 0x03 0x06 6 - 60 sec
0 ... 360 sec
60 P55 0055 1 R/W 0x03 0x06 6 - 100%
80..100%
61 P56 0056 1 R/W 0x03 0x06 6 - 65%
30..75%
62
Parameter table
P57 0057 1 R/W 0x03 0x06 6 - 10%
1..15%
63 P58 0058 1 R/W 0x03 0x06 6 - ON
1 = ON: enabled
0 = OFF: disabled
64 P59 0059 1 R/W 0x03 0x06 6 - 2 min
1 ... 6 min
65 P60 0060 1 R/W 0x03 0x06 6 - 0
0…89min, OFF(90)
66 P61 0061 1 R/W 0x03 0x06 6 - OFF
0…359min, OFF(360)
67 P62 0062 1 R/W 0x03 0x06 6 - Off (0)
0 = Off, 100 … 9900 hours
68 P65 0065 1 R/W 0x03 0x06 - x50 8 °C
OFF(=4.5), 5 ~WcoolEco;
WcoolEco=40 °C max
69 P66 0066 1 R/W 0x03 0x06 - x50 OFF
WHeatEco ... 40
°C,OFF(=40.5);
WHeatEco=5C min
70 P68 0068 1 R/W 0x03 0x06 8 - 2 = 19200bps
0 = 4800bps,
1 = 9600bps,
2 = 19200bps,
3 = 38400bps
71 P69 0069 1 R/W 0x03 0x06 8 - OFF
0 = OFF := Disabled
1 = ON := Enable
72 P70 0070 1 R/W 0x03 0x06 8 - Even
0 = Odd
1 = Even
2 = No parity
73 P71 0071 1 R/W 0x03 0x06 8 - OFF
0 = OFF := Disable
1 = ON := Reload start
74 P81 0081 1 R/W 0x03 0x06 - 1
1…247
* If a bus command is received via MODBUS for either COMFORT or ECONOMY operating mode, the symbol
of the selected operating mode will be displayed.
i.e. either COMFORT or ECONOMY symbol only
If a bus command is received for PROTECTION mode, the AUTO TIMER symbol ( ) will be displayed and
all key buttons will be de-activated.
i.e. both PROTECTION and AUTO TIMER symbols
** RDF302.B does not have inputs X1 and X2. Parameters related x1 and X2 input functions are not applicable
to RDF302.B.