Supported Block Transfer Messages B–21
Trip Fault Queue Number Read
Trip Fault Queue Number Read provides the fault queue number of
the fault that caused the device to trip.
PLC Block Transfer Instruction Data
PLC request instruction length: 3 words
Drive response instruction length: 4 words
Figure B.14 Message Structure
Message Operation
Trip Fault Queue Number Read provides the number of the entry in
the fault queue that tripped the device in word 3 of the drive response.
The fault queue number is 0 when the device is not faulted.
If an error has occurred in the block transfer, word 1 of the response is
negative.
Example
In this example, the device has stored a fault in the first entry of the
fault queue that caused the drive to trip. Word 3 of the response
indicates the entry number.
Data File Format
* Example only — These values vary depending on parameters and products.
Header
Word 0
PLC Decimal Value
1794
Header
Word 1
Header
Word 2
PLC Request
Header Word 0
Header Word 1
Header Word 2
Message Length
Message Length
PLC Decimal Value
1794 — Message OK
–30984 — Message Error
0
Drive Response
3
0
4
Header
Word 3
Number of Trip Fault
or Error Code
0123456789
PLC request 3 1794 0
Drive response 4 1794 0 1*
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