Lenze 8400 StateLine - Manual (Page 919)

Lenze · 8400 StateLine · Reference manual · DMS 12.0 EN · 06/2014 · TD05/TD14
919
17 Function library
17.1 Function blocks
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
17.1.9 L_Arithmetik_1
This FB can combine two analog signals arithmetically.
• The arithmetic function is selected in C00338 .
• All internal intermediate results and the value output at the nOut_a output are internally
limited to ±32767.
• Division is not remainder considered.
Inputs
Outputs
Parameter
Identifier
Data type
Information/possible settings
nIn1_a
INT
Input signal 1
nIn2_a
INT
Input signal 2
Identifier
Data type
Value/meaning
nOut_a
INT
Output signal
• Internal limitation to ±32767 (±199.99 %)
Parameter Possible settings Info
C00338 Function selection
0
1
2
3
4 When the denominator has the
value "0", it will be set to "1".
5
/B$ULWKPHWLNB
Q,QBD Q2XWBD
Q,QBD
r
,Q
 
,Q
,Q 
,Q
 
,Q,Q 
,Q,Q 
,Q 
&

_,Q_
,Q
2XW
,Q
,Q
nOut_a nIn1_a
=
nOut_a nIn1_a nIn2_a
+ =
nOut_a nIn1_a nIn2_a – =
nOut_a
nIn1_a nIn2_a ⋅
16384
---------------------------------------- =
nOut_a
nIn1_a
nIn2_a
--------------------- 164 ⋅ =
nOut_a
nIn1_a
16384 nIn2_a
–
---------------------------------------- 16384 ⋅ =