ABB FDNA-01, User Manual

Page: 141 / 168

Communication protocol 141
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Acknowledge handler object, class 2Bh
The acknowledge handler object is used to manage the reception
of message acknowledgements. This object communicates with a
message producing application object within the device. The
acknowledge handler object notifies the producing application of
acknowledge reception, acknowledge time-outs and production
retry limit.
Class attributes (Instance #0)
Instance attributes (Instance #1)
# Attribute
name Services Description Data
type
1 Revision Get Revision of the DeviceNet
Object Class Definition upon
which the implementation is
based UINT8
# Attribute
name Services Description Data
type
1 Acknowl-
edge Timer Get, Set Time in milliseconds to wait for
acknowledge before resending UINT16
2 Retry Limit Get, Set Number of Acknowledge
Timeouts to wait before
informing the producing
application of a Retry-
Limit_Reached event UINT8
3 COS
Producing
Connection
Instance Get Connection Instance Id which
contains the path of the
producing I/O application object
which is notified of the
Acknowledge Handler events UINT16