Technical Support Notes

Symptoms
After running a continuous loop that includes long parallel processing statements for several minutes, error 24 occurs.

Causes
This is a bug in the SRC-3xx controller firmware and PC compiler.   The PC compiler does not report that a line is too long.  Then during execution, some internal tables are corrupted.

Remedies
Avoid using long parallel processing statements.  If you compile on the controller (see Setup | Proferences | Project), an error will occur stating that the line is too long.
Instead of using inline parallel processing during the motion command, consider using a separate task.  It will do the same job, allow more statements, and will be easier to comment.

For example, replace the following parallel processing Jump statement with a simple Jump and separate task:

Jump P1 !On 1; Wait .1; On 2; Wait .2; Off 2; Wait .2; Off 1

Replace with:

Xqt !2, monitor  ' Start monitor task 
...
...
Jump P1 !On $procJump!  ' Signal monitor task to process parallel statements during Jump
' Wait for parallel processing to complete, in case Jump is finished first
Wait Sw($procJump) = Off

Function monitor
  Off $procJump
  While TRUE
    If Sw($procJump) Then
      ' Parallel process during jump
      On 1
      Wait .1
      On 2
      Wait .2
      Off 2
      Wait .2
      Off 1
      Off $procJump  ' Signal that we are done with processing
    EndIf
  Wend
Fend

Status
This problem is being researched.

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