Rockwell-automation 1336T ControlNet Frn1.02 Rev 1.5 User Manual Page 67

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4–25Using Unscheduled Messaging
Publication 1336 FORCE–5.18 ––March, 1999
The Trip Fault Queue Number message provides the fault queue
number of the fault that caused the drive to trip.
PLC Block Transfer Instruction Data
PLC MSG Write instruction length: 3 words
PLC MSG Read instruction length: 4 words
Message
3
Header
Word 1
Header
Word 1
PLC Decimal Value
1793
Header
Word 2
Header
Word 3
0
PLC Decimal Value
1793 –– Message OK
Header
Word 2
Header
Word 3
0
-30975 –– Message Error
Header
Word 4
Fault Queue Size
Message Structure
0
PLC Request –– PLC Message Write
Drive Response –– PLC Message Read
Message Operation
The Trip Fault Queue Number function provides the entry number of
the fault in the fault queue that tripped the drive The PMR response
contains that number in word 4. The Fault Queue Number is 0 when
the drive is not faulted.
If an error has occurred in the block transfer, word 2 of the response
will be -30975.
Example
In this example, the first entry in the drive fault queue has caused the
drive to trip. Word 4 of the PMR indicates the entry number.
10
N7:10
23456789
N7:90
PLC MSG
Write File
PLC MSG
Read File
Data Format
0
01
3
0
1794
1794
These values vary depending on parameters and products.
Fault Queue
Trip Fault Queue Number
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