User Manual

Output configu
ration
Load input,
start condition
A B C D
Modulating load input with
modulating load outputs
Number of
stages or
aggregates
4
1
St
art
Run priority
changeover
(Example 3) A+B a a a Yes
Description:
Control of 2 sequentially switched control valves of the same size and type.
Plant diagram Function diagram
AI
DI
AO
DO
3123S51
1
2
X
P
0 %
0 %
Q
X
P
100 %
B
A
100 %
Q
A
B
3123D29
Configuration diagram
CD
C D
X
A B
Rotary
step switch 1
Modul. output Modul. output
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