User Manual

Output configu
ration
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
St
art
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
3123S55
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
3123D31
B
C
A
A
A
Configuration diagram
CD
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 >
Config
uration
Operating lin
e Setting
Type Linear
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Siemens Switching and monitoring device RMS705B CE1P3124en
Building Technologies Aggregates 01.04.2010