Siemens SIPART DR21

3 Functional description of the structure switches
3.4 Controller types (S1, S42 to S45)
Manual
74
SIPART DR21
C73000-B7476-C143-08
I
X1
X
0
wi
CB
0
S44
1
0
1
S45
S43
0
H
1
S43
1
Si
H H
Int
W
W
X
tF
c1, c2, c3
1
Factory setting
c1=c2=c3=0
x=x1+c1·(x2-c2·x3+c3)
Adaptation
x
X
CB
SA,SE
tS
0
S49
SH
III
w
n o
wi1
S85
wi1
ES
SES
2/3/(4/5)
1)
0/1
1)
Note: S52 = 4 is recommended for this controller 1)
as of software --A5
S17, x3/wv
EA
S16, x2
S15, x1
Int
-- +
00000000
0000
II/IV
fig. 3-27, page 104
fig. 3-1, page 49
Fig. 3-19, page 89
H
H
Si Si
xd
tS tSH
Figure 3-10 Block diagram S1 = 2, DDC fixed setpoint controller