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Siemens Building Technologies
CC1A7865.1en
HVAC Products
31.10.2002
Description of operating modes
Parameter «RemoteStatus» is used to switch between the operating modes «LOCAL»,
«REMOTE SETPOINT» and «FULLY REMOTE». The change is always accomplished
via the MOD bus.
In the event the master fails or communication is lost, the RWF40... will switch to oper-
ating mode «LOCAL». The time for detecting a failure is set via the interface.
Remote
parameter
Default after
«Power-up»
REM
Operating mode «LOCAL», «REMOTE SETPOINT» or
«FULLY REMOTE»
= 0
SPR
Setpoint remote
= SP1
RHYS1
Switch-on threshold remote
= Hys1
RHYS2
Lower switch-off threshold remote
= Hys2
RHYS3
Upper switch-off treshold remote
= Hys3
ROFF
Controller ON (0) / OFF (1) in operating modes
«REMOTE SETPOINT» and «FULLY REMOTE»
= 0 ¹
)
RSTEP
Number of control cycles (opening / closing) (FULLY
REMOTE)
= 0 ²
)
RK1
Release of burner (FULLY REMOTE)
= 0 ³
)
RK2
Controlling element opens (FULLY REMOTE)
= 0 ³
)
RK3
Controlling element closes (FULLY REMOTE)
= 0 ³
)
RK6
Value of «K6» in operating modes «SETPOINT
REMOTE» and «FULLY REMOTE»
= 0
RY
Degree of modulation for the analog output (FULLY
REMOTE) in %
= 0
¹
)
Controller active
²
)
No travel command (K2 + K3 = deenergized)
³
)
When the operating mode changes (e.g. LOCAL
®
FULLY REMOTE), the relay
information and the degree of modulation will be predefined, depending on the
operating state of the plant.
Dtt
Bus detection timer (value will also be maintained after a power failure)
The remote parameters are stored in RAM and will no longer be available after a power
failure.
After «Power-up», the default values will be used.
General
RAM parameter for re-
mote operation
