Siemens POS8.4420/109 Basic Documentation page 67

A6V11471220_en--_e
DHWModeU 51 1 N8Z8 /
ser DPT_DHWMod
e_Z
DHWModeU 15 1 B1 / DPT_Bool
serLocked 6
DHWModeU 25 N8Z8 /
1
serEff 4 DPT_DHWMod
e_Z
the DWH storage tank
once to the 'Normal'
temperature setpoint.
• Default Value (after
powerup) = 0
• DHWPushUser is a
trigger signal that must
not be sent after a
powerup.
DHWPushUser may
be triggered by user
interaction on the HMI
only.
R IR.re DHWModeUser refers
q to the process output
property of AB
UDHWSET to change
the DHW user
operating mode via a
Room Unit.
• Supported Z8-States:
OutOfService
• Default Value (after
powerup) =
OutOfService
• DHWModeUser must
not be sent after a
reboot of the Room
Unit. Transmission of
DHWModeUser may
be triggered by user
interaction on the HMI
only.
• Heartbeat: no
RW W.in DHWModeUserLocke
d refers to the
d
proprietary input
process signal of AB
UDHWSET to lock or
enable the manual
operation of
DHWModeUser on the
Room Unit.
IR.in DHWModeUserEff
R
d refers to the process
input property of AB
UDHWSET to indicate
the effective user-
request 'Auto' or
'Manual' for the DHW
operating mode.
• Supported Z8-States:
none (for received PL-
Link message)
• Default Value (after
powerup) of local copy
of property
DHWModeUserEff
= 'void', e.g. with Z8
'OutOfService'
=> local firmware
decision to encode the
'void' state
• After a reboot of the
Room Unit the local
copy of property
DHWModeUserEff
remains 'void' until the
1st DHWModeUserEff
message is received.
10
Appendix
Object list
=> KNX Standard,
chapter 7/11/3, clause
2.8.4.2 Output
DHWModeUser
=> KNX Standard,
chapter 7/11/3, clause
2.8.4.7 Input
DHWModeUserEff
67 | 70