Siemens SIMATIC S5 Manual page 208

S5-115F Manual
Call and Parameter Assignment:
Parameter Meaning
Module address
BG
Channel number
KN
Upper limit of
OGR
the output value
Lower limit of
UGR
the output value
User-controlled
DRAK
wire-break
monitor active
Wire-break
1
ODGR
upper limit
Wire-break
1
UDGR
lower limit
Passivation
PASS
value
Selective
EINZ
sampling
DIR Direct access
Output value
XA
2
F Error bit
Overrange
2
BU
Activity bit of
TBIT
the accessed
module
Time conflict
TKON
1 Values of the scaled range (UGR to OGR)
2 If both bits F and BU = "1", passivation has taken place in the relevant modules. The passivation value is in the value
XA.
EWA 4NEB 811 6149-02
Type Data Assignment / Explanation
Type
AI 460: 128 to 240 (16-byte grid)
D KF
AI 463: 128 to 248 (8-byte grid)
KY = 0 to 7 in AI 460
D KF
D KF
D KF
Set DRAK = "1"
I BI
• if you want to implement wire-
break monitoring according to
above and
• if the relevant analog value is
outside the wire-break limits at this
point
Entry is only relevant if DRAK = 1
D KF
Enter the following here
• The limits of the range within which
values are interpreted as wire-
breaks ( DRAK)
• - 32768 if you have configured a
D KF
global limit value for wire-break in
DB1.
At passivation of the module, the
D KF
safety-related passivation value is
written into the result word instead of
A "1" initiates selective sampling
I BI
(only in the case of the AI 460)
I BI Set DIR="1" if direct access is desired
The scaled analog value is "0" in the
Q W
Q BI Becomes "1" in the event of wire-break
Becomes "1" if the analog input of one
Q BI
or both subunits exceeds the nominal
Becomes "1" if the accessed module is
Q BI
currently executing selective sampling
Becomes "1" in the following cases
Q BI
• if FB 250 accesses an analog input
which is currently being tested or
• if a discrepancy results in the case of
direct access with the parameter
DIR = 1 and the last valid value
instead of the current value is
assigned to output value XA.
The values XA, FB and BU are not up-
dated. Only the old values are available
for them.
0 to 3 in AI 463
-32768 to +32767
-32768 to +32767
the AI value read in.
event of a wire-break
range
Blocks
STL
: JU FB 250
NAME : AGF : ANEI
BG :
KN :
OGR :
UGR :
DRAK :
ODGR :
UDGR :
PASS :
EINZ :
DIR :
XA :
FB :
BU :
TBIT :
TKON :
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