If the addresses of the inputs, which lie below
the status bit addresses, are not used, the
terminal will set them at "logic zero".
The diagnostic information of the four status bits
is coded and contains the following meaning:
Depending on the configuration of the status bits
occupy the following addresses:
Bit-number Meaning
(X = not relevant)
2
7
2
6
2
5
2
4
0
X
X
X
1
0
0
1
1
X
0
1
0
1
X
0
X
X
X
X
No error
Output: short circuit/overload
V
Valves
< 21. 6 V
Voutputs
< 10 V
V
inputs
< 10 V
x = not relevant
Fig. 5/9: Coded diagnostic information of the four status bits
ID code Process
data
channel
Available
address range
Addresses of the status bits
Siemens module Standard module
2
or
3
16
32
48
64
0 ... 15
0 ... 31
0 ... 47
0 ... 63
12, 13, 14, 15
28, 29, 30, 31
44, 45, 46, 47
60, 61, 62, 63
4, 5, 6, 7
20, 21, 22, 23
36, 37, 38, 39
52, 53, 54, 55
Fig 5/10: Position of the status bits depending on configuration
VIFB6 - 03/05 5. Diagnosis/Error Treatment
5-14
9809c
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