Operating Instructions

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Siemens RXB (KNX) application library RXB Description of functions for FC-10, FC-11, FC-12, FC-13 CM110385en_08
Building Technologies Contents 2013-06-17
5.4.1 Local control of room operating mode via the window contact input .......... 47
5.4.2 Central control of room operating mode via the Room operating mode time
schedule...................................................................................................... 48
5.4.3 Central control of room operating mode via the Use and Occupancy time
schedules .................................................................................................... 49
5.4.4 Central and local control of room operating mode based on occupancy .... 49
5.4.5 Local control of room operating mode with a room unit .............................. 51
5.4.6 Local control of room operating mode via the Temporary Comfort mode
input ............................................................................................................ 52
5.4.7 Effective room operating mode ................................................................... 53
5.4.8 Third-party (S-mode) examples .................................................................. 54
5.5 Determine the room operating mode with Synco (LTE mode) .................... 56
5.5.1 Local control of room operating mode via the window contact input .......... 57
5.5.2 Central control of the room operating mode via Enable Comfort ............... 57
5.5.3 Central control of room operating mode via Room operating mode input . 58
5.5.4 Local control of room operating mode via presence detector ..................... 59
5.5.5 Local control of room operating mode with a room unit .............................. 60
5.5.6 LTE-Mode Examples .................................................................................. 61
5.6 Determine the room operating mode without a bus (stand-alone) .............. 63
5.6.1 Local control of room operating mode via the window contact input .......... 64
5.6.2 Local control of room operating mode via a presence detector .................. 64
5.6.3 Local control of room operating mode with a room unit .............................. 65
5.6.4 Stand-alone Example.................................................................................. 66
6 Setpoint calculation ..................................................................................... 68
6.1 Description .................................................................................................. 68
6.1.1 Bus output for current setpoints .................................................................. 69
6.1.2 Bus output effective setpoints ..................................................................... 69
6.1.3 Bus outputs LTE mode ............................................................................... 69
6.2 Set the setpoints with the tool ..................................................................... 70
6.3 Setpoint adjustment runtime ....................................................................... 71
6.4 Central setpoint shift ................................................................................... 72
6.5 Local setpoint shift ...................................................................................... 73
7 Temperature measurement ........................................................................ 75
7.1 Room temperature measurement ............................................................... 75
7.1.1 Local temperature sensor at PPS2 interface .............................................. 75
7.1.2 Local temperature sensor at analog input................................................... 75
7.1.3 Averaging analog input & PPS2 interface ................................................... 76
7.1.4 Sensor correction ........................................................................................ 77
7.1.5 Temperature sensor outputs on the Konnex bus ........................................ 77
7.1.6 Temperature sensor input from Konnex bus............................................... 78
7.2 Outside air temperature via Konnex bus (FNC10, FNC12, FNC18) ........... 79
7.3 Supply temperature measurement (FC-13, FNC08 only) ........................... 80
8 Control sequences ...................................................................................... 81
8.1 Fan coils with valve control ......................................................................... 81
8.1.1 4-pipe fan coils - With valve control ............................................................ 81
8.1.2 2-pipe fan coils - With valve control ............................................................ 82
8.1.3 Heating/cooling output ................................................................................ 84
8.1.4 Actuator type selection................................................................................ 84
8.1.5 Values representing valve actuator positions ............................................. 91
8.1.6 Valve exercising feature.............................................................................. 92
8.1.7 Override valve actuators ............................................................................. 93
8.2 Fan coils with damper control ..................................................................... 94
8.2.1 4-pipe fan coils with damper control (FNC20)............................................. 94
8.2.2 Value representing damper actuator positions ........................................... 95
8.2.3 Overriding the damper actuator .................................................................. 96