Basic Documentation

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Siemens VAV compact controller G..B181.1E/3 | VAV modular controller ASV181.1E/3 CE1P3544en
Smart Infrastructure 2021-10-26
5.4.4 Master/Slave operating mode
To control supply air and extract air in master/slave operating mode, the actual
value signal of the master controller (supply air) is the reference signal for the slave
controller (extract air).
VAV ratio control 1 : 1
Supply air (Master)
Extract air (Slave)
min
V

max
V

min
V

max
V

Supervisory controller
0 %
100 %
0 %
100 %
VAV compact controller
20 %
80 %
0 %
100 %
Reference signal: Y
master
= 25 %
Result: V
master
= V
slave
= 35 %
100
min
V

max
V

100
80
60
40
20
-20
0 40 60 80
0
100
60
40
120
Reference signal
Y
master
V

100
min
V

max
V

100
80
60
40
20
-20
0 20 60 80
0
100
60
40
120
Reference signal
V

Supply air controller (Master) Extract air controller (Slave)
master
V

slave
V

Setting example C1