Basic Documentation
Table Of Contents
- 1 About this document
- 2 Overview
- 3 Notes
- 4 Functions
- 4.1 Temperature control
- 4.2 Operating modes
- 4.3 Room temperature setpoint
- 4.4 Application overview
- 4.5 Additional functions
- 4.6 Control sequences
- 4.7 Control outputs
- 4.8 Fan control
- 4.9 Multifunctional input, digital input
- 4.10 Handling system faults
- 4.11 Modbus RTU mode
- 4.12 Communication objects
- 4.13 Control parameters
- 5 Connection
- 6 Technical data
- 7 Dimensions
- Index
Functions
Communication objects
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Read
Write
Object no.
Object
Related parameter
Address (Decimal)
Register length (bytes)
Read only (RO) or Read/Write
(R/W)
Function code (HEX)
0x03--Read holding registers
0x04--Read input registers
0x06--Write single register
0x10--Write multiple registers
Special process
Default value
Data value range
(Decimal)
54
Fan control
P52
0037
1
R/W
0x03
0x06
-
1
0 = Disabled
1 = Enabled
2 = Heating only
3 = Cooling only
55
Fan overrun time
(RDF660MB only)
P54
0038
1
R/W
0x03
0x06
-
60 s
0...360 s
56
ECM fan max. output
P55
0039
1
R/W
0x03
0x06
-
80 %
ECM fan min…100 %
57
ECM fan min. output
P56
0040
1
R/W
0x03
0x06
-
30 %
1%... ECM fan max.
58
Fan min. ON time
P59
0041
1
R/W
0x03
0x06
-
2 min
1...6 min
59
Periodic fan kick Comfort
P60
0042
1
R/W
0x03
0x06
-
0
0 = Off or 1…89 minutes
90 = Fan continues to run
60
Periodic fan kick Eco
P61
0043
1
R/W
0x03
0x06
-
0
0 = Off or 1…359 minutes
360 = Fan continues to run
61
Fan filter service reminder
P62
0044
1
R/W
0x03
0x06
-
0
0 = Off or 100…9900 h
62
Protection heating setpoint
P65
0045
1
R/W
0x03
0x06
x50
8 ℃
0 = Off
5…WCoolProt (P66)
WCoolProt (P66)= 40 °C max.
63
Protection cooling setpoint
P66
0046
1
R/W
0x03
0x06
x50
0
0 = Off
WHeatProt (P65)…40
WHeatProt (P65) = 5 °C min.
64
Fan start delay
P67
0047
1
R/W
0x03
0x06
-
0
0 = Off or 1...360 s
65
Restore factory setting
P71
0048
1
R/W
0x03
0x06
-
0
0 = Disable
1 = Reload start
66
Room operating mode:
Preselection
-
0101
1
R/W
0x03
0x06
-
2
1 = Protection
2 = Comfort
3 = Economy
67
SYS Protection
-
0102
1
R/W
0x03
0x06
-
1
1 = Protection
68
Fan command value
-
0103
1
R/W
0x03
0x06
-
0
0 = Auto
1 = Low speed fan
2 = Medium speed fan
3 = High speed fan
69
Room temperature: Comfort
setpoint
-
0104
1
R/W
0x03
0x06
x50
21
5...40 °C
70
Outside temperature
-
0105
1
R/W
0x03
0x06
x50
-
- 20...70 °C
71
Room operating mode:
Window state
-
0106
1
R/W
0x03
0x06
-
0
0 = Close (default)
1 = Open
72
Room operating mode:
Presence detector
-
0107
1
R/W
0x03
0x06
-
0
0 = Inactive (default)
1 = Active
73
Room operating mode:
Keycard
-
0108
1
R/W
0x03
0x06
-
0
0 = Inactive (default)
1 = Active
74
Heating/cooling changeover
-
0109
1
R/W
0x03
0x06
-
1
0 = Heating
1 = Cooling
75
Application
Plant type
-
0110
1
R/W
0x03
0x06
-
0
0 = None (No application)
1 = 2-pipe
2 = 2-pipe 3-position
3 = 2-pipe with electric heater
(RDF660MB only)
4 = 4-pipe