Siemens SIPART DR24 - 7 User Examples; Maximum Selection (Example 1)

Manual
7 User Examples
7.1 Maximum Selection (Example 1)
SIP ART DR24 6DR2410
C79000-G7476-C153-03
177
7 User Examples
7.1 Maximum Selection (Example 1)
D Problem
Maximum selection with switchover possibility after set value K
y=max(x
1
,x
2
)VK
max.
K
AE1 = 0 to 100% = 0 to 20 mA
AE2 = 0 to 100% = 0 to 20 mA
Analog
switch
Switch
Set value = 80%
0 to 100%
Display
y = 0 to 100% = 4 to 20 mA
- Interfaces of the SIPART DR24 to the process
2 analog inputs: AE1 = 0 to 20 mA; AE2 = 0 to 20 mA
1 analog output AA: y = 4 to 20 mA
- Equipment required
Standard SIPART DR24 controller