Basic Documentation

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Siemens Universal controllers RMU710B, RMU720B, RMU730B CE1P3150en
Building Technologies Aggregates 03.10.2011
10.8.11 Application example storage tank charging
The following application example shows a solution for a self-holding function. The
measured value connected to logic A input 1 gives the switch-on command for
storage tank charging. The measured value at logic B input 1 terminates charging.
1
2
2
1
xx x x
A
B
3
x
Q
d
C
OR
NAND
AND
3123S05en
Logic 1
Required configuration and setting values:
Operating line Comments
[Logic A] function OR
[Logic B] function NAND
[Logic C] function
AND
[Logic A switching value 1] on
30 °C
[Logic A switching value 1] off
35 °C
[Logic B switching value 1] on
65 °C
[Logic B switching value 1] off
60 °C