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Clear faults – Rockwell Automation 1395 ControlNet Communication Board User Manual

Page 42

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3–28

Configuration & PLC Interfacing

Publication 1395–5.37– March, 1999

Clear Faults

This function requests the Drive to clear any soft or warning faults that
have occurred. It also clears the fault buffer. Hard faults cannot be
cleared using the command.

PLC Block Transfer Instruction Data –

Write

Read

Size In Elements:

4

4

Processor Type:

PLC-5

PLC-5

Destination Address:

N40:0-3

N40:0-3

Message Structure –

0

PLC Message Write

PLC Message Read

NOTE:

Word 4 of the PLC Message Read instruction is broken down
into two bytes. The High byte contains the status bits

The Low byte contains the Drive message length in bytes.

Header
Word 1

0

Function Code
1795

Message Length
8 bytes

Header
Word 2

Header
Word 3

Header
Word 4

0

Header
Word 1

0

Function Code
1795

See Note

Header
Word 2

Header
Word 3

Header
Word 4

Message Operation – This function requests the Drive to clear any
soft or warning faults that have occurred. It also clears the fault buffer.
Hard faults cannot be cleared using this command.

IMPORTANT: If the Drive is running (i.e. the DC loop contactor is
picked up), the CLEAR FAULTS command will be ignored.