Siemens CU240S DP-F - Page 267

Functions
8.14 Free function blocks
Control Units CU240S
Operating Instructions, 11/2006, A5E00766042B AA
8-71
No. Type Example
2 SUB SUB 1
r2874
x1
x2
200 %
-200 %
P2800 P2802[6]
Result = x1 - x2
If: x1 - x2 > 200%
→
x1 - x2 < -200%
→
Result = 200%
Result = -200%
Result
P2873
x1 + x2
Index 0
Index 1
2 MUL MUL 1
r2878
x1
x2
200 %
-200 %
100%
x2x1∗
> 200%
→
< -200%
→
%100
2x1x
%100
2x1x
∗
∗
Result = 200%
Result = -200%
If:
P287 7
Index 0
Index 1
%100
2x1x ∗
P2800 P2802[8]
Result =
Result
2 DIV DIV 1
r2882
x1
x2
200 %
-200 %
2X
%1001x ∗
x2
100%x1∗
P2800 P2802[10]
> 200%
→
< -200%
→
x2
100%x1
x2
100%x1
∗
∗
Result = 200%
Result = -200%
If:
P288 1
Index 1
Index 0
Result =
Result
2 CMP CMP 1
P2885
r2886
x1
x2
Out
x1
≥
x2
→
Out = 1
x1
<
x2
→
Out
=
0
P2800 P2802[12]
Out = x 1 ≥ x2
CMP
Index 0
Index 1
2 FFB setpoints
(connector
settings)
P2889
P2890
Connector Setting in %
Ran
g
e : -200% ... 200%