Rockwell Automation 1395 Node Adapter Board User Manual

Page 33

Advertising
background image

Chapter 3
Functional Description

3-21

EE Memory Initialize

This function initializes the Drive’s memory and EEPROM to a set of
default values stored internally in the Drive.

IMPORTANT: Any data in Drive memory and EEPROM prior to issuing
the EEPROM INITIALIZE command will be erased.

PLC Block Transfer Data

BTW Instruction Length: 4
BTR Instruction Length: 40

BTW Message Structure –
Message Header Information:

Word 1: 0
Word 2: 0
Function Code, Word 3: 769
Write Message Length, Word 4: 8 bytes

WORD

0

0

769

8

BTW (SETUP)

BTR (RETURNED DATA)

0

0

769

See Note

1

2

3

4

NOTE:

Word 3 of the BTR instruction is broken down into
two bytes. The High byte contains the status bits
per table 3.B. The low byte contains the Drive
message length in bytes.

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

ATTENTION: When using the EE Memory Recall function
you must be certain that the default values stored in the Drive
will not degrade Drive or System performance and will not
cause a loss of either control or emergency stop functions.

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

Advertising