Diagnostics
10.2 Diagnostic messages to the S7 controller
PN/BACnet LINK
82
Operating Instructions, 10/2017, A5E39895543-AA
Event text
Event for triggering
Possible remedy
BACnet object not available
–
Object Identifier {1:x}: Error
while accessing the object
.
Defective configuration for the
BACnet object
Checking the configuration for the
object and whether the BACnet
object in question exists with the
required permissions and whether
the associated BACnet device can
be accessed.
BACnet object not available
– object identifier {1:x}:
Cycle time exceeded during
object access.
Cycle time was significantly ex-
ceeded when accessing the I/O
object.
Extend cycle times accordingly
Only one message can be pending at any given time on each BACnet device. A message
that applies for the entire device has a high priority (for example, different BACnet device
cannot be accessed). A high-priority message can replace a message which applies to an
individual reference object (for example, BACnet object cannot be accessed).
The pending messages are still shown and are not automatically removed both after
reconfiguration of the device and after deactivation of the client function.
In the event of an error in several reference objects, the message for the first reference is
displayed.
Diagnostic messages with specification of the BACnet object identifier
A diagnostic message can contain the BACnet object identifier as additional information.
The BACnet object identifier has the following structure:
Figure 10-4 Structure of the object identifier
Object identifier
Value
Object type
Analog input
0
Analog output
1
Binary input
3
Binary output
4
Instance number
1 ... 4191302
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