Fault queue, Plc block transfer instruction data, Message operation – Rockwell Automation 1336T PLC Comm. Adapter, Series B, FRN 2.xx-3.xx User Manual

Page 164: Fault clear/reset

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7–18

Publication 1336 FORCE–5.13 –– September, 1998

The Fault Clear/Reset message activates one of several fault queue
related functions shown in the message request.

PLC Block Transfer Instruction Data

BTW instruction length:

4 words

BTR instruction length:

4 words

Message Length

4

Header

Word 1

Header

Word 1

PLC Decimal Value

-30976

Not Used

PLC Decimal Value

1792 –– Message OK

0

-30976 –– Message Error

0

Fault Command

Clear Fault
Clear Fault Queue
Drive Reset

EE Command

Value

00
01
02
03

Status Word

Message Request

Message Structure

Header

Word 2

Header

Word 3

Data

Word 4

Header

Word 2

Data

Word 3

Data

Word 4

0

PLC Request –– Block Transfer Write

Drive Response –– Block Transfer Read

Message Operation

The Fault Clear/Reset function specified in the BTW sends a fault
handling request to the drive.

A Clear Fault Request clears the last fault that occurred and
makes the drive available to run.

A Clear Fault Queue clears the entire fault buffer.

A Drive Reset resets the drive and clears any parameters or links
not saved. Parameter information stored in EEPROM is written to
RAM.

If an error has occurred in the block transfer, word 2 of the BTR
returns a value of -30976.

Fault Queue

Fault Clear/Reset

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