Rockwell Automation 1395 Node Adapter Board - Manual (Page 31)

Chapter 3
Functional Description
3-19
Message Formats This section of the manual provides a detailed explanation of the messages
that the Drive supports. These messages are used by the RIO block transfer
interface to program Drive parameters, read parameter data, and control
other Drive functions.
EE Memory Recall This function takes the information stored in the Drive’s EEPROM
memory and places it in Drive memory.
IMPORTANT: 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 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: 257
Write Message Length, Word 4: 8 bytes
WORD
0
0
257
8
BTW (SETUP) BTR (RETURNED DATA)
0
0
257
See Note
1
2
3
4
NOTE: Word 4 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.
IMPORTANT: This message is ignored by the Drive when it is running
(i.e. the contactor is picked up).
This BTW function requires the message header only. The status byte of
the BTR will indicate the success or failure of the request.