Supported Emulated Block Transfer Commands F-21
Figure F.11 Fault Queue Size Message Structure
Message Operation
Fault Queue Size reads back the size of the fault queue available in the
product. Each product may have a different number of fault queue entries
available for storage.
If an error has occurred, word 1 of the response returns a value of
-30975.
Example
In this example, a 1336 PLUS drive was used. This product has a fault
queue of four storage locations available to store faults. This value is
seen in word 3 of the response header message.
Data File Format
* Example only — These values vary depending on parameters and products.
Header
Word 0
PLC Decimal Value
1793
Header
Word 1
Header
Word 2
PLC Request
Header Word 0
Header Word 1
Header Word 2
Message Length
Message Length
PLC Decimal Value
1793 — Message OK
–30975 — Message Error
0
Drive Response
3
0
4
Fault Queue Size
Data
Word 3
0123456789
PLC request 3 1793 0
Drive response 4 1793 0 4*
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