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Ee memory recall – Rockwell Automation 1395 ControlNet Communication Board User Manual

Page 30

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3–16

Configuration & PLC Interfacing

Publication 1395–5.37– March, 1999

EE Memory Recall

This function takes the information stored in the Drive’s EEPROM
memory and places it in Drive memory.

ATTENTION: All data that was stored in Drive memory
prior to issuing the EE RECALL command will be erased
when an EE RECALL takes place.

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
257

Message Length
8 bytes

Header
Word 2

Header
Word 3

Header
Word 4

0

Header
Word 1

0

Function Code
257

See Note

Header
Word 2

Header
Word 3

Header
Word 4

Message Operation – The EE Memory Recall function instructs the
Drive to replace the contents of Drive memory with the values that are
stored in EEPROM. Any configuration links present in the Drive will
also be replaced by those in EEPROM.

IMPORTANT: This message is ignored by the Drive when it is running
(i.e. the contactor is picked up).

This function requires the message header only. The status byte will
indicate the success or failure of the request.