Rockwell Automation 1336T Function Block Prog. Manual, Series A/B - Manual (Page 129)

5–13 Block Transfer Services
1336 FORCE — 5.9 August 1995
Word 5 is interpreted differently depending on the type of compiler
fault.
❒
If Word 4 is 2, Word 5 contains the function block number for the
first input parameter or node that has an invalid link. A function
block link fault occurs when the compiler is processing links and
encounters a function block node with a link to an invalid output
node.
❒ If Word 4 is clear and a download is incomplete, the first four bits
of Word 5 correspond to the packets the system has received.
The drive sets the bits as it receives up to four packets.
❒
If Word 4 is 0, Word 5 contains the execution number of the first
illegal event in the execution list. This warning occurs when the
compiler is processing a function block program and encounters a
bad event value.
Note: The drive fault queue contains a textual description of the
current fault.
If you receive an I/O node limit error (indicated when Word 4 is 4),
the execution list contains more than the allowable number of nodes.
An invalid node reference can occur if a node does not exist.
Chapter 6 provides information about handling invalid node
references.
Example
The following examples show a drive function block fault.
1 0
N10:10
2 3 4 5 6 7 8 9
N10:90
BTW
Data File
BTR
Data File
Data Format
0
0 2
0
0
0F05
0F05 810A
Example 1
1 0
N10:10
2 3 4 5 6 7 8 9
N10:90
BTW
Data File
BTR
Data File
0
0 1024
0
0
3845
3845 6
Example 2
Link ID of the node
Specifies that block 6
in the execution list is illegal
Dec
that has an invalid link
Specifies a link
processing error
Fault Status Read
(continued)
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