UD70
Issue code: 70nu2
Diagnostics 9-1
9 Diagnostics
This chapter covers the following:
• Run-time errors and trip codes
• Compiler errors and warnings
• Advanced error-handling
9.1 Run-time errors
A run-time error is an error which occurs in a specific operation of the UD70.
It could happen as a result of an error in the DPL program (such as trying to
write to a parameter that doesn't exist, or trying to divide a value by zero),
or in an automatic operation such as loss of communications with an I/O Box.
Certain run-time trips can be disabled (such as parameter write over-range).
The actions taken when a run-time error occurs are as follows:
• All DPL Tasks stop being executed.
• If the Global run-time trip enableGlobal run-time trip enable parameter (#17.14) is set at 1, and
the error does not involve serial communications, the Drive will be
tripped. The trip causes the Drive to immediately disable its power
outputs. If the error is related to the I/O Box, the Drive trips if the
I/O Box Trip-enable parameter is also set at 1.
• If an
ERROR Task is present in the DPL program, it starts being
executed (see Advanced error-handling later in this chapter for
details).
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