User Manual

Functions
Communication objects (S
-
Mode)
4
102 | 150 A6V11545892_en--_a
4.13.2 Description of communication objects
Obj Object name Function Type/
length
Flags Obj Object name Function Type/
length
Flags
1 System time Time and date 19.001
8 bytes
CWU
9
10
11
12
Room operating
mode: Preselection
- Auto
- Comfort
- Economy
- Protection
Trigger 1.017
1 bit
CW
System time for display on the room thermostat. See P009 (3 or 4)
2 Date Date 11.001
3 bytes
CWU
Day, month and year for display on the room thermostat. See
P009 (3 or 4)
Switch room operating mode to either Auto, Comfort, Economy or
Protection.
The last interaction wins – either from the local operating mode
button or via bus.
3 Time of day Time of day 10.001
3 bytes
CWU
13 Room operating
mode: Time switch
Comfort
PreComf.
Economy
Protection
20.102
1 byte
CWU
Another object for receiving the time of day for display on the room
thermostat. See P009 (3 or 4)
4 Fault information Alarm Info 219.001
6 bytes
CT This information is provided by a central schedule or a supervisor
and defines the actual HVAC operating mode.
The command can also be submitted via three 1-bit
communication objects (14...16).
Protection has the highest priority and cannot be overridden.
Note: The thermostat transforms Pre-Comfort either into Economy
or Comfort (selectable via P910).
Common alarm output. If an alarm occurs, the alarm number is
transmitted.
5 Fault status Alarm 1.005
1 bit
CT
14
15
16
Room operating
mode: Time switch
- Comfort
- Economy
- Protection
Trigger 1.017
1 bit
CW
Common alarm output. If an alarm occurs, the alarm flag is set.
6 Fault transmission Enable
Disable
1.003
1 bit
CWU
A supervisory alarm system can disable the broadcasting of
alarms sent by the devices. This has no impact on the local
display of alarms. After a timeout of 48 hours, the sending of faults
is automatically enabled again.
Switch the HVAC mode to either Comfort, Economy or Protection
mode.
7 Room operating
mode: Preselection
(receive)
Auto
Comfort
PreComf.
Economy
Protection
20.102
1 byte
CWU 17 Room operating
mode: Status
Comfort
Economy
Protection
20.102
1 byte
CRT
Controls the room operating mode selection of the thermostat via
bus.
The command can also be submitted as four 1-bit communication
objects (9...12). The last interaction wins – either from local
operating mode button or via bus.
Note: The thermostat will transform Pre-Comfort either into
Economy or Comfort (selectable via P910).
Actual room operating mode used by the thermostat (considering
time switch, user selection, window contact, etc.) This state
information is available via one 8-bit enumeration or three 1-bit
communication objects (18...20).
18
19
20
Room operating
mode:
- Comfort status
- Economy status
- Protection status
ON
OFF
1.011
1 bit
CT
8 Room operating
mode: Preselection
(send)
Auto
Comfort
Economy
Protection
20.102
1 byte
CRT
Sends the room operating mode selection of the thermostat via
bus.
The command can also be submitted as four 1-bit communication
objects (9...12). The last interaction wins – either from local
operating mode button or via bus.
Corresponding communication object sends "True".