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Output configuration
Load input,
start condition
A
B
C
D
Modulating load input with
combinations of modulating and
switching outputs
Number of
stages or
aggregates
4
1
Start
Run priority
changeover
(Example 5)
A+B+C
a
a d d
nein
Description:
Level control with 2 on/off shutoff valves and 1 control valve.
Plant diagram
Function diagram
AI
DI
AO
DO
3123S
55
2x
1 m
3
/h
0..1 m
3
/h
1
2
3
1 m
3
/h
X
P
0 %
0 %
Q
X
P
100 %
B
A
C
100 %
Q
31
23
D
31
B
C
A
A
A
Configuration diagram
C D
C
D
X
C
C
A
Rotary
step switch 1
Logic 1
Logic 2
Main menu > Commissioning > Extra configuration > Aggregates > Rotary step switch >
Rotary step switch 1…2 >
Configuration
Operating line
Setting
Type Linear
86 / 216
Siemens
Switching and monitoring device RMS705B
CE1P3124en
Building Technologies
Aggregates
01.04.2010