Siemens SIMATIC S5-115U, Руководство пользователя

Страница: 364 / 676

Analog Value Processing S5-115U Manual
10.9 Analog Value Matching Blocks FB250 and FB251
These blocks match the nominal range of an analog module to a normalized range that you can
specify.
Reading and Scaling an Analog Value - FB250 -
Function block FB250 reads an analog value from an analog input module and outputs a value XA
in the scaled range specified. Define the desired range using the "upper limit" (OGR) and "lower
limit" (UGR) parameters.
Specify the type of analog value representation (channel type) in the KNKT parameter (see
Section 10). The BU parameter is set when the analog value exceeds the nominal range.
Call and Parameter Assignments
Standardized analog value is "0"
on wirebreak.
Type Parameter Description Assignment STL
BG
Module address
D 128 ... 224
KNKT
KN= Channel
number
KT= Channel type
D
KY =x,y
x
=0 to 15
y =3 to 6
3: absolute value represen-
tation (4 to 20 mA)
4: unipolar representation
5: absolute value, bipolar
6: bipolar
fixed-point number
(two’s complement)
OGR
Upper limit of the
output value
D - 32768 to +32767
UGR
Lower limit of the
output value
D - 32768 to +32767
EINZ
XA Output value Q
FB Error bit Q
BU Range violation Q
"1" when nominal range is
exceeded
"1" on wirebreak,
illegal channel or slot number,
or illegal channel type
TBIT
Activity bit of the
function block
Q
: JU FB 250
NAME : RLG:AE
BG :
KNKT :
OGR :
UGR :
EINZ :
XA :
FB :
BU :
TBIT :
Data
Type
KF
KY
KF
KF
W
Selective sampling
BI
BI
BI
The function block is in the
process of selective sampling
when the signal state is "1".
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a a
I BI
Selective sampling is triggered
with "1".
10-60
EWA 4NEB 811 6130-02b