Rockwell Automation 1336T ControlNet Frn1.02 Rev 1.5 - Manual (Page 72)

4–30 Using Unscheduled Messaging
Publication 1336 FORCE–5.18 ––March, 1999
The Warning Queue Read Full function reads the contents of the
specified warning queue entry number. A message is returned that
includes the warning text and warning code associated with the
specified warning queue entry and the time stamp associated with the
fault.
PLC Block Transfer Instruction Data
PLC Message Write instruction length: 3 words
PLC Message Read instruction length: 16 words
Header
Word 1 Header
Word 1
PLC Decimal Value
2048
Header
Word 2
Data
Word 3
Header
Word 2
Header
Word 3
PLC Decimal Value
2048 –– Message OK
-30720 –– Message Error
Message Structure
Message Length
3
0
Warning Queue Entry
Number Warning Queue Entry
Number
Data
Word 4
Warning Text
Character 2 Character 1
Data
Word 5
Warning Text
Character 4 Character 3
Data
Word 6
Warning Text
Character 6 Character 5
Data
Word 7
Warning Text
Character 8 Character 7
Data
Word 8
Warning Text
Character 10 Character 9
Data
Word 9
Warning Text
Characcter 12 Character 11
Data
Word 10
Warning Text
Character 14 Character 13
Data
Word 11
Warning Text
Character 16 Character 15
Warning Code Value
Data
Word 12
PLC Request –– PLC Message Write
Data
Word 13
Clock Time
Second 1/10 of Second
Data
Word 14
Clock Time
Hour Minute
Drive Response –– PLC Message Read
Warning Queue
Warning Queue Read Full