Room Mode Selection Via Digital Inputs - Siemens Synco 200 Basic Documentation

Operating principle
Note
RLU232 and RLU236
Notes
32 / 174
Siemens
Building Technologies
6.2

Room mode selection via digital inputs

This feature provides for intervention in the current program without having to
make any changes at the controller itself. To activate this function, you have to
configure the appropriate digital inputs.
Mode switching via HMI (operation) is not possible.
The following settings are required depending on the desired function:
Function
Switching between
Comfort / Protection
Switching between
Comfort / Economy
D1 D2 Operating mode
0 0 Comfort
0 1 Economy
1 0 Protection
1 1 Protection
If there is no wire connected to digital input D1, then D1 = 0
•
If digital input D1 is set to Protection, Comfort / Economy changeover is
•
deactivated
Universal Controllers RLU2...
Operating modes
Setting
Digital input D1, hard
wired
Digital input D2, hard
wired
Function
Comfort is the operating mode for the
occupied room. The room state is within the
comfort envelope in terms of temperature,
humidity, etc.
Economy is an energy-saving operating mode
for the room if Comfort mode is not required
for a given period. In Economy mode, the
control process operates with setpoints that
may differ from the Comfort mode setpoints.
Switching to Economy mode is usually done
via an external time program
Protection is an operating mode in which a
plant is only started to ensure that the building
and equipment are protected against frost
See above
Value
Permanently
configured
Permanently
configured
CE1P3101en
29.08.2008