Octet 5 and 6: Ident_Number
Explanation
These octets contain the manufacturer identifier:
FB09
H
for the Festo valve terminal types 03-05.
Octet 7: Ext_Diag_Data (device-related diagnosis)
Explanation
This octet represents the header for the
device diagnosis.
The valve terminal enters the value 8 in this
octet, i.e. 8 octets for device-related diagnosis
are transferred (incl. header octet). This value is
independent of the extent to which the valve ter-
minal is fitted with valves or other modules such
as analogue modules or AS-i master.
Octet 8: Device-related diagnosis 1
Bit Meaning Explanation
0
Error ASI
(bus error)
Logic "1":
error in AS-i bus
1
Error ASI
(nominal- <> actual
configuration)
Logic "1":
AS-i nominal configuration does not correspond
to AS-i actual configuration
2
Short circuit/overload
electrical outputs
Logic "1":
At least one electrical output short circuited
or overloaded. The faulty output can be
localized more closely with the "Device-related
diagnosis" 2 and 3.
3
Error ASI
(power fail)
Logic "1":
AS-i supply voltage outside of tolerances
4
V
sen
Logic "1": Voltage supply for sensors <10 V
5
V
val
Logic "1": Voltage supply for valve coils <21.6 V*
6
V
out
Logic "1": Voltage supply for valve coils and
electrical outputs <10 V*
7
Error analogue
Logic "1":
Short circuit of an analogue voltage input
or hardware error at analogue module
* Only if voltage monitoring is activated (see chapter 3.2, DIL switch)
VIFB13 - 03/05 5. Diagnosis/error treatment
9701 NH 5-25
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