Festo 03-FB-8 Series, Электронное руководство

Страница: 107 / 127

The status bits are configured like inputs and
always occupy the four highest-value addresses
of the available address range.
If the inputs of the addresses thereunder are not
used, the terminal will be set them to "logic zero".
The diagnostic information of the four status bits
is coded and has the following meaning:
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
val
< 21.6 V
V
out
< 10 V
V
sen
< 10 V
*) The status bits can always be addressed with the four highest-value
addresses of the configured address range.
Fig. 5/11: Coded diagnostic information of the four status bits
Configuration as
Quarter rack Half rack
Number of configured
inputs 32 64
Addresses of status bits 28, 29, 30, 31 60, 61, 62, 63
Fig. 5/10: Addresses of the status bits
VIFB8 - 03/05 5. Diagnosis and error treatment
5-12
9809c