GE D485 - Acknowledge Handler Object (Class 2 Bh)

3–10 D485 MODBUS TO DEVICENET CONVERTER – USER GUIDE
DATA EXCHANGE
ACKNOWLEDGE
HANDLER OBJECT
(CLASS 2BH)
Services:
Class services: Get Attribute Single
Instance services: Get Attribute Single, Set Attribute Single
Table 3–16: Class attributes for acknowledge handler object 2Bh
Attr. Access Name Type Value Description
1 Get Revision UINT 0001h Revision 1
2 Get Max. instance UINT 0001h Maximum instance number
Table 3–17: Instance attributes for acknowledge handler object 2Bh
Attr. Access Name Type Value Description
1 Get/Set Acknowledge
timer
UINT 20 Time (in ms) to wait for
acknowledge before re-sending.
2 Get/Set Retry limit USINT 1 Number of ACK time-outs before
retry limit reached event
3 Get/Set Producing
connection
Instance
UINT 4 Connection instance – contains
the path of the producing I/O
application object which will be
notified of acknowledge handler
events
4 Get Acknowledge list
size
Byte --- Maximum number of members
in acknowledge list (0 = dynamic)
5 Get Acknowledge list Array of
USINT
N/A List of active connection instance
which are receiving
acknowledgements.
6GetData with
acknowledge path
list size
Byte --- Maximum number of members
in data with acknowledge path
list (0=dynamic)
7GetData with
acknowledge path
list
Array of
USINT
N/A List of connection instance/
consuming application object
pairs.