© 2006 Carlo Gavazzi Industri A/S. All rights reserved
35
Object
Function
Channel
In-/outputs
Temperature sensor
Temperature
A2
Relay output
Heating valve
A3
Configuration
Analog sensor:
Transmission of
A2
Temperature sensor
analog value
Analog sensor:
Analog signal out-
A3
Temperature sensor
put and switching
channel for the
relay of the heating
valve
Real-time clock
Timer for night
A4
setback
Application Example
Task:
A heating element is to keep the room temperature between 19°C and 21°C during daytime. At
night, the temperature must be lowered by 4°C.
A temperature sensor located in the room is coded for address A2 and displays the temperature
on a Touchscreen.
Solution:
Since the analog sensor value on A2 is already needed for displaying the temperature, we assign
the temperature sensor object - and consequently the relay controlled by the heating element -
to address A3.
For the night setback, we assign a real-time clock to A4 with the desired switching times. The
real-time clock serves as an additional address for enabling the second pair of limit values.
G 3800 X036 Operation Manual
August 2006
