S1= 1: Fixed Setpoint Controller With 2 Dependent Setpoints - Siemens SIPART DR22 Manual

Manual
1.5.4.3 S1= 1:
wi1
wi2=wi1 · c4+c5
x1
FE1
x2
FE2
x=x1+c1 · (x2 - c2·x3+c3)
x3
FE3
z
FE4
Figure 1-26 Principle representation S1 = 1
This controller type is always used when for example in two batch mode the second setpoint
needs to be in a specific ratio to the first. The ratio is set by the constants c4 and c5.
Factory setting is c4 = 1 and c5 = 0.
The switching and display functions are the same as at S1 = 0. Only the internal setpoint (wi1)
can be adjusted if it is displayed.
SIPART DR22 6DR2210
C79000-G7476-C154-03
Fixed setpoint controller with 2 dependent setpoints
0000
W
INT∧CB
tS
1.5 Functional description of the structure switches
1.5.4 Controller types (S1, S49 to S53)
0000
x
W
+
P I D
y
a
--
x
1 Technical Description
000
y
H
y
y +c6⋅z
a
51